Bio-kerosene and Bio-gasoil from Coconut Oils via Hydrocracking Process over Ni-Fe/HZSM-5 Catalyst

Abstract

In this study, hydrocracking of coconut oil over Ni-Fe/HZSM-5 catalyst was carried out in a batch reactor under different reaction temperature. Coconut oil is proposed as one of the potential feedstock for biofuel production. The Ni-Fe/HZSM-5 catalyst was prepared by incipient wetness impregnation method. The characterization of Ni-Fe/HZSM-5 catalyst by X-Ray Diffraction (XRD), Scanning Electron Microscopy-Energy Dispersive X-ray (SEM-EDAX), and Brunauer-Emmett-Teller (BET). The chemical composition of biofuel was analyzed by Gas-Chromatography-Mass Spectrometry (GC-MS). The results from the GC-MS analysis showed that the hydrocracking reaction over 10 % (Ni-Fe)/HZSM-5 catalyst at temperature of 375 o C obtained the highest hydrocarbon content (contained 49.4% n-paraffin, 26.93 % isoparaffin, 3.58 % olefin) and the highest yield of bio-gasoil 38.6 % in the biofuel liquid hydrocarbon. Pentadecane (n-C15) and heptadecane (n-C17) were the most abundant hydrocarbon compounds in biofuel liquid hydrocarbon. Decarboxylation and/or decarbonylation was the dominant reaction pathways in this process. Based on the result, the reaction temperature had a significant effect on the distribution of biofuel composition and yield of biofuel from coconut oil.

Kinerja Katalis Ni-Cu/HZSM-5 dalam Pembuatan Biogasoil dari Minyak Bintaro (Cerbera Manghas) dengan Proses Hydrocracking

“…Hasil ini menunjukkan, terjadinya proses penghilangan atom oksigen dari asam lemak yang memiliki molekul rantai panjang menjadi molekul rantai pendek. Setelah melakukan pengelompokan berdasarkan rantai hidrokarbon C14-C20 yang mana merupakan kelompok gasoil berdasarkan perhitungan persamaan 4 [17] maka didapatkan yield gasoil sebesar 82,7% dan 23,75% dengan penggunaan variabel ratio dan loading katalis Ni-Cu/HZSM-5 berturut-turut 5(1:1) dan 10(1:1).…”

Pengaruh Aktivasi secara Kimia menggunakan Larutan Asam dan Basa terhadap Karakteristik Zeolit Alam

“…Aplikasi penggunaan zeolit sangat banyak seperti pada industri, agrikultura, dan pengolahan air limbah. Dalam bidang industri, zeolit digunakan sebagai adsorben, katalis, dan penghilang logam berat (Al Muttaqii, et al, 2019). Oleh karena itu upaya peningkatan potensi zeolit alam perlu dikembangkan dengan baik sehingga aplikasinya bisa lebih bervariasi untuk keperluan dalam bidang lingkungan, industri, dan pertanian.Hingga saat ini, zeolit alam terus diupayakan pemanfaatannya pada berbagai bidang.…”

Catalytic pyrolysis of coconut oil with Ni/SBA-15 for the production of bio jet fuel

“…Oil from coconut (Coco nucifera) stands out for having great potential for the production of aviation biofuel since its seed contains a high oil yield (63 to 65%) and its composition has a high proportion of fatty acids with chains in the range of C8 to C12, such as lauric acid and myristic acid, which are within the hydrocarbon range of aviation biofuels. 8,13 To obtain biokerosene, ve methods are certied by the American Society for Testing Materials (ASTM) according to the ASTM D7655 standard: iso-paraffinic synthesized kerosene (SIP), paraffinic and aromatic kerosene synthesized by the Fischer-Tropsch process (FT-SPKA), jet alcohol (ATJ), paraffinic kerosene synthesized by the Fischer-Tropsch process (FT-SPK) and paraffinic kerosene from the hydro-processing of esters and fatty acids (HEFA). [14][15][16] Another method that has been receiving attention is the pyrolysis process, which is a promising route for obtaining hydrocarbons from renewable raw materials, as demonstrated by Shah and collaborators.…”