The main aim of this work was to develop a sustainable Ni/Zeolite catalyst derived from geothermal solid waste for waste cooking oil processing. The effects of catalyst concentration and operation temperature on the transesterification process for biodiesel production which used waste cooking oil as feedstock were investigated to determine the optimum biodiesel process condition. Results have shown the synthesized Ni/Zeolite catalyst was granular in shape and crystalline with increased surface area and pore volume, 80.661 m g, and 0.123 cc g respectively. Meanwhile, the highest biodiesel yield obtained was 89.4 % at 3 % w/w Ni/Zeolite catalyst addition and 60 °C operating temperature. The reusability of the synthesized catalyst was also investigated, with results showing the biodiesel yield decreasing to 73.3 % after three cycles.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.chemosphere.2021.131618 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Continuous Flow Ni- or Ru-Zeolite-Catalyzed Intramolecular Dehydration of Diols and Seco-Acids for Macrocyclic Ethers and Lactones.
J Org Chem
November 2024
Department of Chemistry, Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pashan, Pune 411008, India.
Herein, we report the efficient intramolecular dehydrative coupling of symmetrical and unsymmetrical diols for the synthesis of macrocyclic crown ethers in the presence of Ni-zeolite as a catalyst under continuous flow module. This method is also efficient for the intramolecular dehydrative macrolactonization of seco-acids using Ni-zeolite or Ru-zeolite. This flow catalysis is demonstrated by a wide substrate scope with one-time packed Ni-zeolite to produce 20 macrocyclic polyethers and 11 examples of broad macrolactones with water as a byproduct.
View Article and Find Full Text PDFResponse Surface Methodology for Ni-Zeolite Catalyst Optimization in Syngas Production.
ACS Omega
October 2024
School of Chemistry and Chemical Engineering, Queen's University Belfast, Belfast, BT9 5AG Northern Ireland, U.K.
Article Synopsis
- This research focuses on converting waste methane into valuable syngas using customized nickel-zeolite catalysts, particularly examining 5 wt % nickel on various zeolite supports.
- Comprehensive characterization methods revealed that factors such as catalyst reducibility, type of zeolite support, and carbon deposit formation at high temperatures significantly affect methane conversion efficiency.
- The optimal catalyst, 5Ni-Z3, achieved over 92% conversion for methane and over 90% for carbon dioxide under ideal conditions, with experimental results closely matching predictions from simulations, confirming the effectiveness of the dry reforming process.
Effect of zeolite structure and Si/Al ratio on cotton stalks hydropyrolysis.
Bioresour Technol
May 2023
Material Resource Efficiency Division, CSIR - Indian Institute of Petroleum, Dehradun 248005, Uttarakhand, India; Academy of Scientific and Innovative Research (AcSIR), Sector 19, Kamla Nehru Nagar, Ghaziabad 201002, Uttar Pradesh, India. Electronic address:
Zeolites, being acidic, act as the most promising catalytic materials for deoxygenating reactive oxygenated compounds produced during the pyrolysis of lignocellulosic biomass. Herein, two zeolites, HY and HZSM-5, with different Si/Al ratios, were employed to investigate the effect of zeolite structure on aromatic hydrocarbons (AHs) production during flash hydropyrolysis of cotton stalks (Temperature = 800 ˚C, H pressure = 10 bar). Both the zeolites enhanced AHs production.
View Article and Find Full Text PDFEnhanced CO methanation at mild temperature on Ni/zeolite from kaolin: effect of metal-support interface.
RSC Adv
April 2021
Departement of Chemistry, Faculty of Science, Universiti Putra Malaysia 43400 UPM Serdang Selangor Malaysia.
Catalytic CO hydrogenation to CH offers a viable route for CO conversion into carbon feedstock. The research aimed to enhance CO conversion at low temperature and to increase the stability of Ni catalysts using zeolite as a support. NaZSM-5 (MFI), NaA (LTA), NaY (FAU), and NaBEA (BEA) synthesized from kaolin were impregnated with 15% Ni nanoparticles in order to elucidate the effect of surface area, porosity and basicity of the zeolite in increasing Ni activity at mild temperature of ∼200 °C.
View Article and Find Full Text PDFGeothermal solid waste derived Ni/Zeolite catalyst for waste cooking oil processing.
Chemosphere
January 2022
Chemical Engineering Department, Faculty of Engineering, Diponegoro University, Semarang, 50275, Indonesia.
The main aim of this work was to develop a sustainable Ni/Zeolite catalyst derived from geothermal solid waste for waste cooking oil processing. The effects of catalyst concentration and operation temperature on the transesterification process for biodiesel production which used waste cooking oil as feedstock were investigated to determine the optimum biodiesel process condition. Results have shown the synthesized Ni/Zeolite catalyst was granular in shape and crystalline with increased surface area and pore volume, 80.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!