STUDI SINTESIS KATALIS Cr/SiO2 DARI LIMBAH ARANG PABRIK KELAPA SAWIT SERTA UJI AKTIVITASNYA PADA PROSES PERENGKAHAN KATALITIK CRUDE PALM OIL (CPO)

Abstract

Penelitian ini bertujuan untuk mengetahui karakteristik katalis Cr/SiO2 untuk penggunaannya pada proses perengkahan katalitik CPO serta mengetahui aktivitas katalis Cr/SiO2 pada proses perengkahan katalitik CPO. Jenis penelitian yang dilakukan adalah penelitian eksperimen laboratorium, katalis hasil sintesis dianalisis dengan metode X-ray Difraktion dan SEM-EDS, katalis Cr/SiO2 hasil sintesis digunakan pada proses perengkahan katalitik CPO dengan memvariasikan jumlah CPO, perbandingan katalis:CPO (1:20;1:25;1:30). Bensin diperoleh memisahkan bensin dari Cairan Hasil Perengkahan (CHP) dengan cara destilasi. Hasil persentase konversi CHP yang diperoleh dari perengkahan katalitik Katalis:CPO (1:20;1:25;1:30) yaitu 58.53%;74.08%;58.76%. Sedangkan persentase konversi bensin pada perengkahan katalitik dengan perbandingan katalis:CPO (1:20;1:25;1:30) yaitu 9,91%;11,23%;8,09%. Arang dari limbah pabrik kelapa sawit dapat dijadikan sumber silika dan bisa disintesis menjadi katalis Cr/SiO2. 2. Katalis Cr/SiO2 sebagian besar mengandung SiO2 yang mempunyai sistem Kristal Hexagonal dan Cr/SiO2 mempunyai sistem Kristal Orthohombic. Namun demikian hasil sintesis katalis Cr/SiO2 pada penelitian ini kurang selektif untuk perengkahan katalitik CPO dibuktikan dengan peningkatan persentase konversi bensin yang tidak terlalu signifikan.

Catalytic Cracking of Methyl Ester from Used Cooking Oil with Ni-Ion-Exchanged ZSM-5 Catalyst

“…Therefore, a high catalyst concentration led to a high Ni content in ZSM-5and an increase in number of active sites of catalysts. After the active site increases, the gasoline yield increases [1,6,26].…”

“…Around the world, environmental concerns and energy security issues have prompted legislation actions urging for alternative fuels. Biofuel has been considered as a perfect alternative energy source because it is renewable and has low toxicity emissions; thus, it can replace fossil fuels [1][2][3][4][5][6][7]. Biodiesel is usually obtained through the transesterification of vegetable and animal oils with alcohol.…”

“…Cracking has been accomplished with solid catalysts, such as H-ZSM-5, metal-impregnated MCM-41, and Y zeolite, which have good selectivity and appropriate pore size. Metal catalysts also support solid carriers, such as silica, alumina, carbon, zeolite, and zeotype structures [6,[14][15][16][24][25][26][27][28][29][30][31].…”

Catalytic Cracking of Used Cooking Oil Using Cobalt-impregnated Carbon Catalysts

“…Biodiesel is defined as the alkyl monoesters of fatty acids derived from vegetable or animal fats. It can be used as an alternative to petrodiesel as it is a renewable, nontoxic, and biodegradable fuel [3][4][5][6][7]. Biodiesel can be obtained from oils such as cassava oil, palm oil, and corn oil, but the use of these sources for the production of biodiesel would have a negative impact on food supplies [8].…”

The Effect of Temperature on the Performance of Activated Carbon Over Catalytic Cracking of Crude Palm Oil

“…If this situation still continue, it will change Indonesia status from crude oil exporter country to crude oil importer country in 2035 (Yudiartono et al, 2018). These facts had encouraged many scientists in Indonesia to search for the ways for efficient energy consumption along with the search for the new sources for fossil fuels and the researches for alternative renewable energy resources (Devita et al, 2017, Nazarudin et al, 2017 For developing a renewable energy, Indonesian government released Presidential Decree No. 2 of 2006 about Nasional Energy Policy describing the principles of energy diversification, Furthermore, the Presidential Decree No.2 of 2015 about National Medium Term Development Plan (RPJMN) stated the strategic poilicies of science and technology development including strategy of renewable energy.…”