Synthesis of Bio Jet Fuel from Crude Palm Oil by HEFA (Hydroprocessed Esters and Fatty Acids) Using Ni-Mo Catalyst Supported by Rice Husk Ash-Based SiO2

2019 ◽  
Vol 964 ◽  
pp. 193-198
Author(s):  
Mabrur Zanata ◽  
Sekar Tri Wulan Amelia ◽  
Muhammad Ridlo Mumtazy ◽  
Firman Kurniawansyah ◽  
Achmad Roesyadi
Keyword(s):  
Rice Husk ◽  
Palm Oil ◽  
Rice Husk Ash ◽  
Catalyst Support ◽  
Jet Fuel ◽  
High Dispersion ◽  
Catalyst Characterization ◽  
Impregnation Method ◽  
Crude Palm Oil ◽  
Mo Catalyst

Bio jet fuel becomes one of the feasible solutions for jet fuel inadequate supply in Indonesia. However, study in this field by far has been limited. In this study, bio jet fuel was synthesized from Crude Palm Oil (CPO) by Hydroprocessed Esters and Fatty Acid (HEFA) facilitated by Ni-Mo/SiO2 catalyst, in which the support was derived from rice husk ash. The study focused on investigating the influence of catalyst-CPO mass ratio and temperature of the catalytic process. Experimental works consisted of silica-based catalyst preparation via impregnation method, followed by sample assessments. Catalytic reactions were conducted at 20-50 bars, with temperature of reaction 300°C and 400°C. Catalyst performance were evaluated from crystallinity, composition, and activity in the reaction. Catalyst characterization shows an amorphous structured with high dispersion of Ni-Mo in rice husk ash have been produced. The HEFA process successfully obtained bio jet fuel (C10-C15 hydrocarbons) with yield and selectivity of 45.17% and 45.46%, respectively. Overall, a systematic approach shows rice husk ash has potential to be developed as a catalyst support for bio jet fuel production from crude palm oil.

scholarly journals Intrinsic Kinetics of Fischer–Tropsch Synthesis over Co/CNTs Catalysts: Effects of Support Interaction

2018 ◽  
Vol 43 (3-4) ◽  
pp. 262-273
Author(s):  
Behnam Hatami ◽  
Ahmad Tavasoli ◽  
Alireza Asghari ◽  
Yahya Zamani ◽  
Akbar Zamaniyan
Keyword(s):  
Carbon Nanotubes ◽  
Hydrogen Adsorption ◽  
Catalyst Support ◽  
Spillover Effect ◽  
Tropsch Synthesis ◽  
Cobalt Catalysts ◽  
High Dispersion ◽  
Impregnation Method ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis

The activities of cobalt catalysts prepared by the microemulsion impregnation method on carbon nanotubes (CNTs) and functionalised carbon nanotubes (FCNTs) supports were evaluated in the Fischer–Tropsch synthesis (FTS). The catalysts were characterised by transmission electron microscopy, X-ray diffraction and Brunauer–Emmett–Teller surface area methods. The results show that the cobalt particles in the FCNTs support are mostly located inside the tubes of the CNTs and show a narrower particle size distribution. The experimental results show that the cobalt catalyst supported on FCNTs leads to a higher CO conversion and FTS activity compared to that supported on normal CNTs. Calculated kinetic results show that the activation energies fall within the narrow range of 101.1–107.1 kJ mol−1 and the heat of hydrogen adsorption was calculated to be −40.2 and −26.2 kJ mol−1 for Co/CNTs and Co/FCNTs catalysts respectively. FCNTs, as a catalyst support of Co nanoparticles, maintain high dispersion which can be attributed to a hydrogen spillover effect of functional groups on the CNT surface.

Transesterification of palm oil to biodiesel using rice husk ash-based catalysts

2015 ◽  
Vol 133 ◽  
pp. 8-13 ◽  
Author(s):  
Guan-Yi Chen ◽  
Rui Shan ◽  
Jia-Fu Shi ◽  
Bei-Bei Yan
Keyword(s):  
Rice Husk ◽  
Palm Oil ◽  
Rice Husk Ash

Optimization of coagulation-flocculation process for the palm oil mill effluent treatment by using rice husk ash

2019 ◽  
Vol 139 ◽  
pp. 111482 ◽  
Author(s):  
Nurhamieza Md Huzir ◽  
Md Maniruzzaman A. Aziz ◽  
S.B. Ismail ◽  
Nik Azmi Nik Mahmood ◽  
N.A. Umor ◽  
...  
Keyword(s):  
Rice Husk ◽  
Palm Oil ◽  
Rice Husk Ash ◽  
Effluent Treatment ◽  
Palm Oil Mill Effluent ◽  
Palm Oil Mill ◽  
Flocculation Process

scholarly journals Influence of porosity on the tensile strength of fine grained mortar containing fly ash, palm oil fuel ash and rice husk ash

2019 ◽  
Vol 513 ◽  
pp. 012027
Author(s):  
Zalipah Jamellodin ◽  
Hamidah Mohd Saman ◽  
Azmi Ibrahim ◽  
Suraya Hani Adnan ◽  
Nur Hafizah Abd Khalid
Keyword(s):  
Tensile Strength ◽  
Fly Ash ◽  
Rice Husk ◽  
Palm Oil ◽  
Rice Husk Ash ◽  
Palm Oil Fuel Ash ◽  
Fine Grained ◽  
Fuel Ash ◽  
Oil Fuel

scholarly journals Incorporation of Rice Husk Ash with Palm Oil Mill Wastes in Enhancing Physicochemical Properties of the Compost

2021 ◽  
Vol 44 (1) ◽  
Author(s):  
Nur Eliza Badrul Hisham ◽  
Nor Hanuni Ramli
Keyword(s):  
Moisture Content ◽  
Physicochemical Properties ◽  
Rice Husk ◽  
Palm Oil ◽  
Rice Husk Ash ◽  
Raw Materials ◽  
Water Holding Capacity ◽  
Decanter Cake ◽  
Palm Oil Mill ◽  
Water Holding

Rice husk ash (RHA), palm oil mill effluent (POME) sludge and decanter cake can be utilized together in compost production to minimize the environmental pollution. This study aims to evaluate the role of different composition of RHA in enhancing the physicochemical properties of palm oil-based compost. The composts were prepared by mixing different composition of RHA, in the range of 0% to 30%, with 1:1 (wt/wt) weight ratio of POME sludge and decanter cake. The moisture content, water holding capacity, pH, nitrogen (N), phosphorus (P), potassium (K), silica (Si) contents, and C:N ratio of raw materials were analyzed by using CHNS and WDXRF analyzers. The composting process was conducted in compost containers for 60 days, in which the temperature and pH of the composts were monitored daily. The finished composts were analyzed for physicochemical properties as same as raw materials. For physical properties of finished composts, RHA30 had the highest moisture content and water holding capacity which was 1.9 to 23.8% (wt/wt) and 4.2 to 26.8% higher compared to other finished composts, respectively. For chemical properties, the highest N and P contents were recorded by control compost. However, for K and Si content, the elements were found to be higher in RHA10 and RHA30, respectively, compared to other finished composts. Overall, RHA, POME sludge and decanter cake combination in compost production can create a well-balanced condition for the compost to perform effectively as an organic fertilizer. The addition of 5% to 10% RHA in compost formulation made from palm oil mill wastes is suggested to achieve the desirable condition.

scholarly journals Preparasi katalis nafta hidritreating dengan fasa aktif Ni-Mo pada penyangga lempung berpilar

2018 ◽  
Vol 7 (2) ◽  
pp. 761
Author(s):  
Nino Rinaldi ◽  
S Subagjo ◽  
IGBN Makertihartha ◽  
Hery Haerudin
Keyword(s):  
Surface Area ◽  
Pillared Clay ◽  
High Dispersion ◽  
Substantial Part ◽  
Impregnation Method ◽  
X Ray Diffraction ◽  
X Ray ◽  
Mo Catalyst ◽  
Active Metal ◽  
Ft Ir

Research on a subject of the preparation of Ni-Mo catalyst on pillared clay support by wetness impregnation method will be investigated in laboratory. The metal concentration of Mo, which will be treated, is roughly 20 %wt and of Ni is 3 %wt. Due to using MoO3 as the metal active catalyst; therefore the support has to contain a specific surface area more than 210 m2/gr in order to achieve the high dispersion of active metal on the support. Also, the effect of the pH of the Mo impregnation solution to the metal active dispersion and activity for Coker naphtha hydrodesulfurization (HDS) will be studied. Characterization of the catalyst will be conducted by using X-ray Diffraction, FT-Infrared, X-ray fluorescence and nitrogen sorption measurement. It is found that the surface area of the support is generated almost 280 m2/gr by pillarization with the oxide composition of the catalyst was 12%-wt of MoO3 and 1.4%-wt of NiO. NiMo-PILC pH-10 catalyst had higher dispersion of active metal on the support than NiMo-PILC pH-1 catalyst. On NiMo-PILC pH-10 catalyst, there was a substantial part of Mo species in the interlayer space of the Al-pillared lay, probably in interaction with the alumina pillar.  Although, it has to be more detail investigated. From the result of the activity test for Coker naphtha HDS showed that NiMo­ PILC pH-10 catalyst had slightly higher activity than NiMo-PILC pH-1 catalyst. However, the both of catalyst still had not good enough activity if compare with the commercial catalyst.Keywords: Montmorillonite-Pillared Clay, Ni-Mo catalyst, Preparation Abstrak Suatu penelitian mengenai preparasi katalis Ni-Mo pada penyangga lempung berpilar dengan metoda impregnasi basah dirancang dan dilakukan dalam skala laboratorium. Konsentrasi logam Mo yang digunakan sebesar 13%-b MoO3 dan logam Ni 4%-b NiO. Karena fasa aktif katalis yang digunakan adalah MoO3 maka luas permukaan penyangga yang dibutuhkan adalah lebih besar dari 210 m2/gr guna mendapatkan dispersi yang tinggi. Selain itu, dipelajari juga efek pH larutan impregnasi Mo terhadap dispersi fasa aktif dan aktivitas katalis pada reaksi hidrodesulfurisasi coker nafta. Karakterisasi katalis berpenyangga dilakukan dengan menggunakan alat difraksi sinar-x, FT-IR, XRF serta dilakukan pengukuran luas permukaan spesifiknya. Dari penelitian ini, didapatkan luas permukaan penyangga lempung berpilar sebesar 277 m2/gr dengan komposisi okasida katalis NiMo yang dihasilkan adalah 12%-b MoO3 dan 1.4%-b NiO. Katalis NiMo-PILC pH-1O memiliki dispersi logam aktif yang lebih tinggi pada penyangga jika dibandingkan dengan katalis NiMo-PILC pH-1. Selain itu, pada katalis NiMo-PILC pH-10 ditemukan adanya sebagian logam Mo yang masuk kedalam ruang interlayer dari lempung, yang diduga menjadi pilar. Namun hal ini harus diteliti lebih detail. Hasil uji aktivitas katalis pada reaksi HDS coker nafta menunjukan bahwa katalis NiMo-PILC pH-10 memiliki aktivitas yang lebih tinggi jika dibandingkan dengan katalis NiMo-PILC pH-1. Namun aktivitas dari kedua katalis tersebut masih di bawah dari katalis hidrotreating komersial. Kata kunci: Coker Nafta, Katalis Ni-Mo, Lempung Berpilar, Preparasi

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