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"Terminal penerima LNG atau terminal regasifikasi LNG dapat meng-akomodir peningkatan kebutuhan gas bumi di wilayah padat konsumen gas bumi, baik yang telah memiliki jalur pipa transmisi/distribusi gas maupun daerah remote. Dalam kajian ini regasifikasi LNG pada terminal penerima dirancang untuk dipadukan dengan industri lainnya, yaitu dingin yang terkandung dalam LNG tersebut (-160°C) untuk di-integrasikan kepada unit condenser yang men-support sistem pendinginan pada instalasi pembangkit listrik (dalam kajian ini PLTG). Penanganan sistem pendinginan Turbin penggerak pembangkit listrik sirkulasi pendingin (coolant) membutuhkan energi untuk melepaskan panas (+ 5000K) ke udara terbuka, yang mana hal tersebut bisa diefisiensikan dengan cara memadukan/meng-integrasikan sistem pendinginan Turbin dengan sistem regasifikasi LNG yang membutuhkan panas, sehingga terminal penerima LNG dengan PLTG dapat menjadi suatu simbiosis yang saling membutuhkan. Langkah-langkah yang dilakukan dalam kajian ini antara lain menganalisa abilitas panas buang yang dihasilkan PLTG (+ 3,000 MMBTU/h) terhadap sistem regasifikasi LNG, kapasitas dan kemampuan suplai gas dari terminal (18,250 m3/d) serta analisa ke-ekonomian-nya. Adapun kajian secara ekonomi pembangunan terminal penerima LNG dengan sistem terpadu bisa membutuhkan biaya sebesar 436 juta US$ dan dengan Equity CAPEX 30%, Discount Rate 7.52% dan dengan asumsi harga LNG FOB sebesar 7.53 US$/MMBTU maka diperoleh IRROE sebesar 13.82% untuk payback periode selama 10 tahun dan IRROI sebesar 8.25%.

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LNG'S receiver terminal or terminal regasification LNG that accommodation can requirement step-up gas to earth at consumer?s solid region gas to earth, well has already had transmission pipe band / gas distribution and also remote region. In this study regasification LNG on terminal receiver is designed to been fused by another industry, which is cold which consists in LNG that (-160°C ) for at integrates to condenser's unit that men - support refrigeration system on power station installation (in this study PLTG).

Actuating Turbine refrigeration system handle circulate power station coolant needing energy for undone heat (+ 500 0 K) to fresh air, which is that thing that efficient can integrates Turbine refrigeration system with regasification LNG's system that needs heat, so LNG'S receiver terminal with PLTG cans be a mutually symbiosis needs.

Steps that is done in this study for example analyses ability heat discards that resulting PLTG(+ 3,000 MMBTU/h) to regasification LNG's system, capacity and supply ability gases of terminal (18,250 m3 /d) and morphological to economics. There is study even developments economic ala terminal LNG'S receiver with coherent system can need cost as big as 436 million US$ and with Equity CAPEX 30%, discount is Rate 7.52% and with price assumption FOB of LNG as big as 7.53 US$/ MMBTU therefore acquired IRROE as big as 12.52% for payback period up to 10 years and IRROI as big as 8.25%."

"Tesis ini membahas tentang evaluasi opsi pengembangan LPG Plant untuk memaksimalkan revenue di Lapangan Gas ?X? sebagai produk tambahan selain komponen gas alam dan kondensat. Penelitian ini adalah bersifat simulasi berdasarkan data-data fasilitas dan informasi cadangan gas yang telah ada dengan metode simulasi LPG extraction, estimasi biaya konstruksi dan operasional dengan informasi akhir berupa penentuan kelayakan ekonomi secara keseluruhan.

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This tesis is discussing about evaluation development plan of LPG extraction plant to improve revenue in ?X? Field ? South Sumatera as additional product from the existing ones which are natural gas and condensate. The method of this research is simulation refer to data from existing facility and reservoir to be evaluated using software LPG extraction analysis, cost estimate related with construction and operational cost with final result about overall economic evaluation."

"Adsorpsi gas hidrogen dalam material berpori seperti karbon merupakan teknik penyimpanan hidrogen bertekanan yang efektif dan sangat menjanjikan untuk diaplikasikan pada sistem penyimpanan hidrogen sebagai bahan bakar terutama pada kendaraan. Nanotube karbon (NTC) merupakan salah satu material karbon yang sangat berpotensi untuk digunakan dalam penyimpanan hidrogen selain karbon aktif.Potensi penyerapan gas hidrogen pada nanotube karbon yang dihasilkan dari produksi lokal diuji kemampuannya pada penelitian ini. Pengujiannya meliputi penentuan kapasitas adsorpsi gas hidrogen serta dinamika adsorpsi dan desorpsinya dari nanotube karbon produksi lokal pada temperatur isotermal 25 ºC dan tekanan 0-1000 Psia. Sebagai pembanding hasil percobaan, dilakukan juga uji yang sama terhadap nanotube karbon komersial yang diproduksi dari Chinese Academy of Sciences.Dari hasil pengujian adsorpsi gas hidrogen dengan kedua NTC menunjukkan bahwa kapasitas adsorpsi hidrogen terus meningkat secara seiring dengan meningkatnya tekanan pada temperatur isotermal 25 ºC. NTC lokal mempunyai kapasitas adsorpsi yang lebih rendah dibandingkan dengan kapasitas adsorpsi NTC komersial. Pada tekanan sekitar 960 psia, kapasitas adsorpsi NTC lokal dan NTC komersial berturut-turut 0,09 % dan 0,13 % berat. Mekanisme adsorpsi yang terjadi pada kedua NTC didasarkan pada interaksi fisik. Secara umum, data adsorpsi hidrogen dari kedua adsorben dapat direpresentasikan dengan baik oleh permodelan Langmuir, dengan % AAD di bawah 5. Dari hasil data dinamika dapat diketahui bahwa proses adsorpsi dan desorpsi pada kedua NTC berlangsung sangat cepat. Pada tekanan tertinggi (960 Psia), kesetimbangan adsorpsi dan desorpsi tercapai mendekati waktu 30 detik, sedangkan pada NTC lokal tercapai pada waktu 2 detik. Waktu pencapaian kesetimbangan pada proses adsorpsi baik pada NTC lokal maupun komersial pada tekanan tinggi lebih cepat dibandingkan pada tekanan rendah. Waktu pencapaian kesetimbangan pada proses desorpsi sedikit lebih cepat pada tekanan tinggi pada NTC komersial sedangkan pada NTC komersial hampir sama pada tekanan tinggi dan rendah. Secara keseluruhan dinamika adsorpsi dan desorpsi yang terjadi pada NTC lokal dan komersial baik pada tekanan rendah sampai tekanan tinggi dapat direpresentasikan dengan baik oleh model dinamika Gasem dan Robinson dengan % AAD di bawah 2.

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Adsorption of hydrogen gas in porous material such as carbon is a effective pressurized hydrogen storage technique and very promising for application in hydrogen storage system for fuel, especially in vehicles. Carbon nanotubes (CNT) is one of the most potential of carbon materials for use in hydrogen storage beside activated carbon.Potential of hydrogen gas adsorption in carbon nanotubes generated from local production was tested in this study. The test includes the determination of hydrogen gas adsorption capacity and dynamics of adsorption and desorption of carbon nanotubes local production at isothermal temperature 25 ºC and pressure 0- 1000 Psia. As a comparison the results of the experiment, also conducted similar tests on commercially produced carbon nanotubes of the Chinese Academy of Sciences.From the test results of hydrogen gas adsorption with both CNT show that the hydrogen adsorption capacity increased with increasing pressure at isothermal temperature of 25ºC. Local CNT has a lower adsorption capacity compared with the adsorption capacity of commercial CNT. At pressures around 960 psia, the adsorption capacity of local and commercial CNT is 0.09% and 0.13% weight respectively. Adsorption mechanism that occurs at both the CNT based on physical interactions. In general, the hydrogen adsorption data of both the adsorbent can be represented well by the Langmuir model, with % AAD of less than 5. From the data, it is known that the dynamics of adsorption and desorption processes at both the CNT happened very quickly. At highest pressure (960 Psia), adsorption and desorption equilibrium of local CNT is reached approximately in 30 seconds, while commercial CNT is reached in 2 seconds. The rate of adsorption equilibrium at both local and commercial CNT at high pressure more rapidly than at low pressures. At process of desorption, the time of equilibrium is reached slightly faster at high pressure than low pressure in the commercial CNT, but almost similar in local CNT. Overall dynamics of adsorption and desorption that occurred at both CNT at low pressure to high pressure can be presented well by the model Gasem and Robinson with % AAD below 2."

"Analisis tekno-ekonomi dilakukan untuk proses ko-elektrolisis menggunakan sel elektroliser oksida padat di dalam pembangkit Power-to-Methanol di Indonesia. Proses yang diusulkan disimulasikan menggunakan Unisim dan Microsoft Excel. Perangkat lunak Unisim digunakan untuk simulasi Power-to-Methanol termasuk ko-elektrolisis dan sintesis metanol. Sedangkan excel digunakan untuk menghitung variabel penting lainnya yang tidak dapat dihitung di Unisim. Kapasitas produksi metanol 3764 MT/tahun dan Rasio SN 2.15 pertama-tama ditentukan, diikuti dengan pembuatan simulasi dan integrasi. Selanjutnya, hasil perhitungan kondisi operasi Ko-elektrolisis jika diterapkan di pabrik PtM dievaluasi. Langkah terakhir dilakukan dengan menganalisis dan mengevaluasi pengaruh harga jual metanol terhadap beberapa variabel dan skenario. Hasil penelitian menunjukkan bahwa kondisi operasi ko-elektrolisis ideal untuk aplikasi PtM dengan daya elektrolisis dan panas proses masing-masing 3700 kW dan 7073 kW. Aplikasi ko-elektrolisis SOEC di PtM juga mampu mencapai kondisi tegangan termal-netral yang diinginkan. Penilaian ekonomi menunjukkan bahwa CAPEX dan OPEX dalam penelitian ini adalah 3 kali dan 2 kali lebih tinggi dari benchmark pabrik e-metanol lainnya. Harga produksi e-metanol dalam penelitian ini adalah $1094/MT. Skenario yang paling mungkin terjadi yaitu skenario realistis (2 dan 3), menunjukkan bahwa harga jual e-metanol yang menguntungkan untuk mencapai payback period tidak lebih dari 10 tahun adalah $1200-1400/MT.

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Techno-economic analysis was performed for a co-electrolysis process using solid oxide electrolyzer cell inside a power-to-methanol plant in Indonesia. The proposed process was simulated using Unisim and Microsoft Excel. Unisim software is used for the power to methanol plant simulation including co-electrolysis and methanol synthesis. While the excel is used to calculate other important variables that can’t be calculated in Unisim. The methanol production capacity of 3764 MT/year and SN Ratio of 2.15 is first to be determined, followed with the simulation modelling and integration. Subsequently, the co-electrolysis operating condition calculation result if applied in PtM plant is evaluated. The last step is done by analysing and evaluating methanol selling price effect upon several variables and scenarios. The result shows that the co-electrolysis operating condition is ideal for PtM application with the electrolysis power and process heat of 3700 kW and 7073 kW correspondingly. The SOEC co-electrolysis application in PtM is also able to achieve the desired thermal-neutral voltage condition. The economic assessment shows that the CAPEX and OPEX in this research is 3 times and 2 times higher than the other e-methanol plant benchmarks. The e-methanol production price in this research is $1094/MT. The most possible occurring scenario which is the realistic scenario (2 and 3) shows that the profitable e-methanol selling price to achieve not more than 10 years payback period is at $1200-1400/MT."

"Peningkatan perkembangan industri minyak dan gas di Indonesia berbanding lurus dengan semakin banyaknya limbah air berminyak yang dihasilkan. Limbah air berminyak mengandung kadar kontaminan seperti COD, TDS, TSS, pH, dan kekeruhan yang tinggi serta cenderung memiliki warna yang pekat. Pada penelitian ini, dilakukan proses pemisahan limbah air berminyak menggunakan proses ultrafiltrasi (UF) membran poliviniliden fluorida (PVDF). Namun, sifat hidrofobik pada polimer PVDF dapat meningkatkan fouling yang terjadi pada saat proses UF. Sehingga, pada penilitian ini dilakukan modifikasi dengan zat aditif polivinilpirolidon (PVP) serta pelarut dimetilasetamida (DMAc) yang membantu pembentukan struktur morfologi pada membran. Sintesis membran dilakukan dengan metode presitipasi imersi dengan variasi massa PVP 0,1 ; 0,2 dan 0,3 gram. Karakterisasi pada membran dilakukan untuk mengetahui sifat pada membran menggunakan uji SEM, FTIR, sudut kontak, uji tarik, dan uji porositas. Digunakan proses perlakuan terdahulu sebelum UF untuk meningkatkan rejeksi pada permeat. Kemudian dilakukan variasi tekanan pada membran dengan variasi massa PVP optimal yakni 0,1 gram pada 1 dan 2 bar. Nilai fluks yang dihasilkan meningkat seiring dengan meningkatnya massa PVP pada membran. Pada variasi membran optimal didaptkan rejeksi untuk COD, TDS, TSS, kekeruhan dan pH secara berturut-turut adalah 82,05% ; 44,46% ; 90,38% ; 85,42% ; 7,1.

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The rapid growth of Indonesia's oil and gas industry has a linear effect on the growth of wastewater produced by the industry. A high level of COD, TDS, TSS, color, turbidity, and pH usually characterizes oily wastewater. In this study, the process of separating oily wastewater will be conducted using a polyvinylidene fluoride (PVDF) membrane ultrafiltration (UF) process. However, the hydrophobic nature of the PVDF polymer can increase the fouling that occurs during the UF process. Therefore, in this study PVDF membrane is modified with the additive polyvinylpyrrolidone (PVP) with dimethylacetamide (DMAc) as a solvent which helps the formation of the morphological structure of the membrane. Membrane synthesis was conducted by immersion precipitation with a mass variation of PVP 0.1; 0.2; and 0.3 grams. Characterization of the membrane was carried out to determine the properties of the membrane using the SEM test, FTIR, contact angle, tensile test, and porosity test. The pre-treatment process is used before UF to increase the rejection of the permeate. Then the pressure variation on the membrane will be carried out with the optimal PVP mass variation of 0,1 gram at 1 and 2 bar. The resulting flux value increases with increasing PVP mass on the membrane. The rejection obtained at optimal membrane variations for COD, TDS, TSS,turbidity, and pH were 82.05%; 44.46%; 90.38%; 85.42%; 7.1."

"Teknologi elektrolisis plasma saat ini masih memiliki beberapa kekurangan dalam konfigurasi injektor udara dan erosi anoda yang menghambat aplikasinya sebagai teknologi tepat guna untuk mendegradasi limbah pewarna tekstil. Maka, penelitian ini bertujuan untuk menganalisis konfigurasi injektor udara dan material elektroda yang efektif mendegradasi limbah pewarna Remazol Red dengan teknologi elektrolisis plasma. Penelitian juga menganalisis pengaruh tegangan terhadap degradasi limbah. Penelitian dilakukan pada daya konstan 600 W dalam reaktor 1,2 L menggunakan variasi material elektroda stainless steel 304 (SS 304), stainless steel 316 (SS 316), dan tungsten; konfigurasi injektor udara bifungsi, bifungsi berselubung, dan katoda terpisah; serta tegangan 550 V, 600 V, dan 650 V. Hasil penelitian terbaik dicapai dengan menggunakan elektroda SS 304 pada tegangan 550 V. Parameter hasil pengujian mencakup persentase degradasi limbah dan erosi anoda. Adapun konfigurasi injektor udara tidak memberikan pengaruh yang signifikan. Pada kombinasi terbaik hasil OVAT, degradasi  limbah Remazol Red mencapai 98,99% dengan degradasi Pt-Co 96,91% dan degradasi COD 74,29% untuk konsentrasi awal limbah 200 ppm dalam K2SO4 0,02 M dan­ Fe2+ 20 ppm. Erosi anoda hanya sebesar 3,9 mg (0,097%) dalam 10 menit. Produk samping yang didapat berupa nitrat sebesar 2,69 mmol dan amonia sebesar 0,19 mmol.

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State-of-the-art plasma electrolysis technology still has several shortcomings in the form of air injector and anode erosion, hindering its application for degrading textile dye waste. Therefore, this research aimed to analyze the most effective form of the air injector and electrode material in degrading Remazol Red dye waste using plasma electrolysis technology. The research also analyzed the effect of voltage on waste degradation. The research was carried out at a constant power of 600 W in a 1.2 L reactor using the variations of stainless steel 304 (SS 304), stainless steel 316 (SS 316), and tungsten as electrode materials; bifunctional, shrouded bifunctional and split-cathode air injector forms; as well as voltages of 550 V, 600 V, and 650 V. The best results were achieved using SS 304 electrodes at a voltage of 550 V. Test result parameters included the percentage of waste degradation and anode erosion. Contrarily, the shape of the air injector did not have a significant influence. Under OVAT best conditions, Remazol Red waste degradation reached 98.99% with Pt-Co degradation 96.91% and COD degradation 74.29% for an initial waste concentration of 200 ppm in K2SO4 0.02 M and Fe2+ 20 ppm. Anode erosion was only 3.9 mg (0.097%) in 10 minutes. The by-products obtained were 2.69 mmol of nitrate and 0.19 mmol of ammonia."

"Pengolahan limbah air merupakan tantangan besar yang dihadapi oleh Indonesia, terutama dengan meningkatnya aktivitas industri dan urbanisasi. Limbah air yang tidak diolah dengan baik dapat mengandung polutan berbahaya yang merusak ekosistem dan mengancam kesehatan manusia. Salah satu metode yang efektif untuk mengatasi masalah pengolahan air adalah metode hybrid ozonation-coagulation. Metode ini dapat mengatasi keterbatasan koagulan dalam mengendapkan senyawa hidrofilik, mengurangi jumlah lumpur yang dihasilkan dan meningkatkan jumlah radikal hidroksil yang terbentuk oleh ozon. Pada penelitian ini, sampel air limbah berasal dari Danau Kenanga Universitas Indonesia sebagai salah sumber daya air yang tersedia. Penelitian ini dilakukan untuk mengevaluasi kinerja penyisihan metode hybrid ozonation coagulation dengan variasi pH dan dosis koagulan terhadap kadar logam besi, kadar logam mangan, kekeruhan, dan total koliform. Variasi pH awal sampel limbah adalah pH 6, 7, dan 8 sedangkan dosis koagulan yang digunakan adalah 100 ppm, 200 ppm, dan 300 ppm. Pada metode hybrid ozonation coagulation dengan variasi terbaik yaitu pH 8 dan dosis koagulan 100 ppm, persentase penyisihan kadar logam besi, kadar logam mangan, kekeruhan, dan total koliform secara berurutan adalah 100%, 11%, 99%, dan 100%.

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Wastewater treatment is a major challenge faced by Indonesia, especially with increasing industrial activities and urbanization. Wastewater that is not treated properly can contain harmful pollutants that damage ecosystems and threaten human health. One of the effective methods to overcome water treatment problems is  the hybrid ozonation-coagulation method. This method can overcome the limitations of coagulants in precipitating hydrophilic compounds, reduce the amount of sludge produced and increase the number of hydroxyl radicals formed by ozone. In this study, wastewater samples came from Lake Kenanga of the University of Indonesia as one of the available water resources. This study was conducted to evaluate the performance of the hybrid ozonation coagulation  method with variations in pH and coagulant dosage on ferrous metal content, manganese metal content, turbidity, and total coliform. The initial pH variation of the waste sample was pH 6, 7, and 8 while the coagulant doses used were 100 ppm, 200 ppm, and 300 ppm. In the hybrid ozonation coagulation method  with the best variation, namely pH 8 and coagulant dose of 100 ppm, the percentage of allowance for ferrous metal content, manganese metal content, turbidity, and total coliform were 100%, 11%, 99%, and 100%, respectively."

"Tanaman dapat menyerap nitrogen secara efisien jika berbentuk nitrogen terfiksasi, seperti nitrat dan ammonia dalam pupuk. Air Plasma Electrolysis dapat dimanfaatkan dalam produksi pupuk nitrat cair dengan menggunakan bahan baku udara yang diinjeksikan melalui katoda menuju zona plasma. Penelitian ini bertujuan untuk memperoleh produk pupuk nitrat cair yang optimum dari prototipe alat produksi pupuk nitrat cair dengan injeksi udara di katoda dan mendapatkan kondisi operasinya. Penelitian ini dilakukan dalam reaktor batch, dengan variasi daya (400, 500, 600 Watt), laju alir udara (0; 0,4; 0,6; 0,8; 1; 1,2 lpm), jarak antara anoda (zona plasma) dengan injektor katoda (1 cm, 2 cm, 3 cm), variasi komposisi konsentrasi elektrolit (0,01 M K2HPO4/0,006 M K2SO4; 0,011 M K2HPO4/0,007 M K2SO4; 0,018 M K2HPO4/0,007 M K2SO4; 0,011 M K2HPO4/0,008 M K2SO4; dan 0,018 M K2HPO4/0,008 M K2SO4), suhu operasi (25 oC – 50 oC dan 50 oC), dan penambahan aditif Fe2+ (10 ppm, 20 ppm, 30 ppm). Produksi nitrat optimum sebesar 1727,2 ppm dengan energi spesifik sebesar 5,82 kJ/mmol, ketergerusan anoda sebesar 0,06 g, dalam waktu operasi 90 menit, pada daya 600 watt, laju alir udara 0,8 lpm, jarak antara anoda (zona plasma) dan injektor udara katoda sebesar 2 cm, menggunakan larutan elektrolit 0,007 M K₂SO₄ dan 0,011 M KH₂PO₄, dengan penambahan aditif ion Fe²⁺ sebesar 30 ppm, dan penggunaan elektroda Stainless Steel-316 (SS-316).

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Plants can efficiently absorb nitrogen when it is in a fixed form, such as nitrate and ammonia in fertilizers. Air Plasma Electrolysis can be utilized in the production of liquid nitrate fertilizer using air injected through the cathode into the plasma zone. This study aims to obtain an optimum liquid nitrate fertilizer product from a prototype nitrate fertilizer production device with air injection at the cathode and to determine its operating conditions. The research is conducted in a batch reactor, with variations in power (400, 500, 600 watts), air flow rate (0; 0.4; 0.6; 0.8; 1; 1.2 lpm), distance between the anode (plasma zone) and cathode injector (1 cm, 2 cm, 3 cm), electrolyte composition (0.01 M K2HPO4/0.006 M K2SO4; 0.011 M K2HPO4/0.007 M K2SO4; 0.018 M K2HPO4/0.007 M K2SO4; 0.011 M K2HPO4/0.008 M K2SO4; and 0.018 M K2HPO4/0.008 M K2SO4), operating temperature (25°C – 50°C and 50°C), and the addition of Fe²⁺ additive (10 ppm, 20 ppm, 30 ppm). The optimum nitrate production is 1727.2 ppm with a specific energy of 5.82 kJ/mmol, anode erosion of 0.06 g, within an operating time of 90 minutes, at a power of 600 watts, air flow rate of 0.8 lpm, a distance between the anode (plasma zone) and cathode air injector of 2 cm, using an electrolyte solution of 0.007 M K₂SO₄ and 0.011 M KH₂PO₄, with the addition of Fe²⁺ ion additive at 30 ppm, and using Stainless Steel-316 (SS-316) electrodes."

"This study is to verify the usage of DME as an alternative fuel and its production routs. As it is clear the energy, its supply and consumption is a very important concern. Countries are developing and as a result of that the energy consumption is increasing. Growing energy consumption is directly related to the depletion of fossil fuels particularly petroleum based fuels. So the world has to think of using other fuels which have at least the same performance and its production is cost-effective. One of these fuels is Dimethyl ether (DME). DME is very promising fuel and research on its characteristics and efficiencies show that it can be considered as a future fuel as it is cheap, environmental friendly and has good efficiency. Another advantage of DME production is that it has different applications and is a versatile fuel. Furthermore, similarity of its physical properties to LPG makes DME handling, storing and transportation easy however DME has low viscosity and lubricity. These mentioned disadvantages which are solvable may cause problems if enough attention is not paid to them. Typically DME is produced from natural gas as a feedstock although coal and biomass are also other possible feedstock to be utilized. To produce DME, natural gas is first converted to synthesis gas via ATR method (Auto thermal reforming) and then is converted to DME through direct method. This research aimed to be done to investigate about the possibility of using DME as a future fuel by discussing about its characteristics, advantages and disadvantages. Moreover, its various production pathways has been talked about and tried to compare them in different aspects."

"With the growth of utilizing natural gas all over the world, Liquefied Natural Gas (LNG) has been widely used in the modern era due to its advantages of storage and transportation. When LNG is unloaded in import terminal, in the time of need, the process of returning natural gas into its gaseous form is being done in the regasification unit with different technologies in order to process the gas and then distribute it by pipeline networks to the end users. Choosing the appropriate LNG vaporizer which is both cost effective and suitable to conditions of the location and environment is intended to be evaluated. The framework of this paper is studying of some of the different LNG vaporization methods and comparing their features and properties that each of them has. The goal of this paper is in the first step, comparison of technologies which are Open Rack Vaporizer (ORV), Shell and Tube Vaporizer (STV), and Intermediate Fluid Vaporizer (IFV) and defining the suitable vaporizer to do the simulation as the second step as well as evaluating the economical features of the project. While the Shell and Tube Vaporizer has been chosen, the regasification plant using three different heating medium, propane, steam, and 50/50 mixture of water and glycol has been designed. At the end, the economic evaluation has been done with total capital investment of 62 million dollars in the service life of 10 years. The NPV is calculated 11.33 million dollars and the salvage value is calculated to be 5.2 million dollars. Each heating medium is considered to be effective depending on the locations and conditions."