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"Hydrocarbon can be used as alternative refrigerant because it has small GWP and zero ODP. Thisresearch intends to compare these Indonesian Hydrocarbon Refrigerants. fine experiment was held alAir Conditioning Test Facility, BTMP - BPPTZ The experiment was running based on the followingconditions: compressor running or 2980 rpm, inlet evaporator for evaporator was varied from -2°C until6°C and outlet temperature of condenser was set at 39°C Test analysis shows that hydrocarbonperformance is almost some as CFC-I2 even better than RI2. As conclusion hydrocarbon can be usedas alternative for CFC-12."

"Agglomeratian method could be used to decrease the pyritic sulfur content in the coal. Bituminouscoal from Tanjung Enim Sumatera Seiatan with 13.34 % of ash and 1,86 % of sulfur contents as rawmaterials, were mired by water and oil in the stainless steel cylinder, then be agitated to produceagglomerate. By using the palm oil and crude palm oil (CPO) as agglomerating oils, the ash and sulfurcontents decreased to 4. 66 % and 1.42 % respectively."

"The integration of adsorption and photocatalysis process is considered to have a better prospect inhandling of organic wastes. The combination of catalyst consisting of Ti0; photocatalyst and activecarbon (AC) adsorbent has been evaluated to treat a phenol waste. Preparation of catalyst wasconducted by evaporating all dilution of TiO; slurry, which has been mired with the granular of activecarbon at a temperature of l00"C and calcined at a temperature of 400"C. SiO; which obtained fromTEOS solutions was added to prevent a falling off TiO;]rom AC support Characterization of BET wasconducted to find out the surf/'ace area as well as pore size of the catalyst. Activity test of the catalystmaterial was done by conducting of 30 ppm phenol solution in annular Pyrex glass reactor thatsurrounded by 3 U V lamps, which have the total illumination intensity of I 44 ,UW/ml. The phenol solutionwas continuously poured in the reactor with rate of 35 ml/min for about 8 hours. The phenolconcentration was analyzed with spectrophotometer at wavelength of500 nm. The optimum condition ofthis domination was reached by using a catalyst of Ti0/SiO;/AC with composition of 2.4:0.047:97.5(weight ratio), and succeeded in eliminating of 30 ppm phenol with 100 % conversion."

"Mannan is an oligo-saccharide that was used for human health as a prebiotic food and is producedfrom hydrolysis of palm kernel cake, coconut seed copra and coke waste. Domestically, palm kernelcake and copra utilized for low efficiency metabolized animal feed A t this moment, via glico-science andtechnology route, these farming waste using mannanase could be degraded to produce functional oligosaccharide such as mannose and manno-oligosaccharide. Around 20-40% of palm kernel cake fibrousfrom CPO waste consist beta-mannan. In the beginning, palm kernel cake fibrous qualitative andquantitative analysis and mannan preparation was done for the next enzymatic processing (fermentationstep). Optimum condition of palm kernel cake residue hydrolysis was 110°C used heating process till 1_5hour and 2% mass acid catalyst of 150 g/L, palm kernel cake residue solution. Here, hydrolysis 150 g/Lsubstrate solution at 90" C used heating process till 1.5 hour produced 19.1% mass mannan. Hydrolisisusing Streptomyces and Saccharopolyspora (strains from B TCC) resulted that both isolates have apotential to produce mannanase and this raw enzyme qualitativlyt capable to hydrolysis palm kernel cakefor producing oligo-saccharides. Both isolates produced mannanase which higher specific activity after24 hour inoculation of palm kernel cake residue solution."