Browsing by Author "Tamboesai, Emrizal M."

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    PEMANFAATAN ZEOLIT A DARI ABU LAYANG PADA PROSES PENGOLAHAN MINYAK MENTAH MENJADI MINYAK PELUMAS DARI SUMUR MINYAK LANGGAK, RIAU
    (2013-03-08) Silviana, Tri Siska; Tamboesai, Emrizal M.; Anita, Sofia
    The aims of this research is to get a base oil (n-paraffins) of crude oil from oil field Langgak, Riau which includes heavy crude oil types. Langgak crude oil contains fraction of saturat, aromat and residue. Base oil is the raw material oil derived from crude oil. Not all of the crude oil can be processed into base oil. Only the crude oil of the type n-paraffins produces base oil. But this crude oil is very limited in earth crust. In this research, fractionation of Langgak crude oil was conducted using stationary phase active silica and n-hexane as a solvent to separate the fractions of saturate. Then, fraction of saturate crude oil were analyzed by gas chromatography (GC). The fraction of saturate crude oil was fractionated using zeolite A which aim to get crude oil n- paraffins type. The results of fractionation using zeolite A were analyzed by gas chromatography (GC). From the results of the chromatogram fractionation using activated silica the active silica can be seen capable of filtering the carbon atom to C-29 of fractions saturat crude oil. Whereas, the results of the chromatogram molecular sieve using zeolite A was indicated the existence of the fraction saturat retained on the zeolite A, until zeolite A number carbon atoms were reduced 26. Zeolite A separates crude oil from the type of n-paraffin which another fractions of Langgak crude oil, which has an average efficiency of 72.39%. Moreover Langgak crude oil in the ratio pr / ph of 2.28 indicates that it is from the source rock samples from lakes and freshwater transitions (lacustrin)
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    PEMANFAATAN ZEOLIT A DARI ABU LAYANG SEBAGAI PENYARING MINYAK MENTAH MENJADI BASE OIL DARI SUMUR MINYAK ZAMRUD, SIAK
    (2013-03-07) Desnita; Tamboesai, Emrizal M.; Anita, Sofia
    Base oil is used as raw material for various types of machinery lubricants. To get the lubricant in accordance with the specifications of the required machinery, base oil is added of additives. The Additives are chemichal compound in certain formulations for lubricants in accordance with defined specifications. The composition of base oil in a lubricant is around 80% and around 20% additives composition. Not all of the crude oil can be processed into base oil. Only the crude oil of the type n-paraffins were peoduced base oil for lube base oil. But this crude oil was very limited in earth crust. In this study, fractionation of Zamrud crude oil using active silica stationary phase and n-hexane as a solvent to separate the fractions is conducted of saturat. These fractions were analyzed by using of Gas Chromatography (GC). Fraction of saturat residual gas chromatography analysis of fractioned using zeolite A to obtain crude oil type n-paraffin. This fractionation results were also analyzed by gas chromatography. From the results of gas chromatographic analysis, a change in the appereance of the chromatogram before and after being treated by molecular sieve. from the number of chains of carbon atoms that exist in the pre-filtered chromatogram with zeolite A there were 29 carbon atoms, whereas after filtered with zeolite A number carbon atoms were reduced 27, indicating the existence of the saturat fraction retained on the zeolite A. Zeolite A is considerable efficiency in filtering Zamrud crude oil, the average efficiency is 46,89%, moreover the ratio pr/ph of Zamrud crude oil were 3,04 which indicates that Zamrud crude oil came from the higher plants
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    SINTESIS DAN KARAKTERISASI MANGAN OKSIDA TIPE BIRNESSITE DENGAN PENGGUNAAN REDUKTOR ASAM FUMARAT MELALUI METODE KERAMIK
    (2013-03-08) Lismawati, Linda; Awaluddin, Amir; Tamboesai, Emrizal M.
    Manganes oxide has structures such as layered, tunnel, and amorphous. Birnessite is a mangane oxide with layered structure. Birnessite has never been found in a pure form in nature. The pure birnessite can be obtained by synthesis in laboratory. In this research, birnessite is synthesized from solids of KMnO4 and fumaric acid using ceramic method. The typical synthesized of birnessite can be carried out by varying mol ratio, temperature, and calcination time of reactants. The products are then characterized by XRD for purity and crystalinity, SEM for morphology and particle size, AAS for chemical composition, and IR for functional group and acidity. The XRD results showed that the number of mol ratio of oxidating agent KMnO4 over reducing agent fumaric acid strongly influenced by the formed manganese oxide phase. An increase in time and temperature of calcination also affects the crystalinity and purity. The optimum conditions of reaction production of improved crystalinity and purity are 3:1 for mol ratio of KMnO4 to fumaric acid, 700 0C for calcination temperature and 7 hours for reaction time. The formation of birnessite is also supported by the presence of 520 cm-1 peak characteristics for birnessite. The synthesized birnessite has surface area between 0.1951 m2/gr and 0.9596 m2/gr with plate-like appreances in which K and Mn contents are 22% and 60%, respectively