<![CDATA[Abstract - Investigation of increasing waste cooking oil quality have been done using H-zeolite as an adsorbent and fluid fixed bed reactor which was operated in a various temperatures. H-zeolite adsorbent was prepared through physical and chemical treatments as follows : washing, acid, calcination and oxidation. The characterization of this adsorbent covered cations contain (Pb, Cu, Zn, Na, K, Ca and Fe) using AAS, Si/Al ratio using AAS, surface area spesific, pore volume and pore diameter using surface area analyzer NOVA 1000 and acidity using gravimetric method with amonia adsorption. Quality parametric of cooking oil that was investigated covered water contain, acid and peroxide value and density. Waste cooking oil as a sample was cooking oil which have been used for frying kerupuk, tempe and tahu three times. Fifty milliliter waste cooking oil was flowed throught 10 g H-zeolite adsorbent in fluid fixed bed reactor which was operated at various temperatures (50, 70, 90, 110 oC). The oil was placed in the bottle to be analyzed. The results of this research showed that the adsorpstion process for increasing quality of waste cooking oil using H-zeolite adsorbent and fluid fixed bed reactor could reduce the water contain, acid and peroxide value and density. The optimum temperature was 70 oC. Keywords :zeolite, waste cooking oil, acid and peroxide value]]>
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