Heterogeneous Catalysts for Biodiesel Production

A special issue of Catalysts (ISSN 2073-4344). This special issue belongs to the section "Catalytic Reaction Engineering".

Deadline for manuscript submissions: closed (10 March 2022) | Viewed by 5652

Special Issue Editors

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Department of Chemical Engineering, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
Interests: catalysis and reaction engineering – in the areas of oxidative cracking/dehydrogenation of hydrocarbons; catalytic cracking of hydrocarbons, oil to chemicals; chemical looping; blue hydrogen; ammonia decomposition to hydrogen; biomass/heavy oil gasification; pyrolysis of waste materials
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Research & Technology Innovation, Pertamina (Persero), Jakarta Selatan 12950, Indonesia
Interests: heterogeneous catalysis; fuels; petrochemicals; CO2 capture; use and storage
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Biodiesel is one of the promising alternatives to conventional fossil-based diesel/fuels in significantly combating the effects of greenhouse gas emissions. It can be obtained by transesterification of oil and fats from plants and animals, respectively. However, there are two major viable sources for biodiesel, including those that are (i) waste food-based and (ii) cellulosic non-food-based. The transesterification of oil/fat reactions is carried out in the presence of a homogeneous or heterogeneous catalyst, which can be classified into basic, acidic, dual, or mixed acid–base and enzyme-based. Recent studies indicate that the use of a heterogeneous solid catalyst offers high conversion and good selectivity. In addition, solid phase catalysts are recyclable, environmentally benign, and economically more attractive.

Along with the above advantages, there are several challenges associated with solid-based catalysts, including short catalyst life; slow reaction rate; instability; and sensitivity to CO2, water, and free fatty acid, which cases serious deactivation via saponification.

To address the aforementioned issues of the transesterification reactions/catalysts for biodiesel production, several catalyst modifications and strategies have been considered. The investigations broadly include supported catalysts with doping/modification to adjust the acidity/basicity, composite catalysts, bimetallic/multimetallic catalysts, co-catalysts, nanostructuring, etc. In addition, there are efforts toward using recycled materials, the energy-efficient recovery of materials, and the economic feasibility of catalytic biodiesel production processes.

This Special Issue entitled “Heterogeneous Catalysts for Biodiesel Production” will concentrate on the state of the art and outlooks for catalytic biodiesel production. The research findings aim at the fundamental exploration of catalyst developments: catalyst syntheses, characterizations and testing in laboratory/larger scales, catalyst deactivation, reaction mechanism, kinetics investigations, catalytic reactors, and experiences in catalytic process operations in biodiesel production are of principal interest to this Special Issue.

Prof. Dr. Mohammad Mozahar Hossain
Prof. Dr. Oki Muraza
Guest Editors

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  • Biodiesel
  • Biofuels
  • Used oils/fats
  • Lipids
  • Transesterification
  • Catalytic process
  • Heterogeneous catalysts
  • Supported catalysts
  • Mixed metal catalysts
  • Reaction mechanism
  • Kinetics

Published Papers (1 paper)

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17 pages, 994 KiB  
Application of Agricultural Waste as Heterogeneous Catalysts for Biodiesel Production
by Haris Mahmood Khan, Tanveer Iqbal, Saima Yasin, Chaudhry Haider Ali, Muhammad Mujtaba Abbas, Muhammad Asif Jamil, Abrar Hussain, Manzoore Elahi M. Soudagar and Muhammad Muhitur Rahman
Catalysts 2021, 11(10), 1215; https://doi.org/10.3390/catal11101215 - 09 Oct 2021
Cited by 23 | Viewed by 4999
In this modern era, it has become essential to transform waste materials into valuables because of their excessive availability, along with achieving the targets of environmental protocols and waste management policies. With a growing population, the utilization and consumption of agricultural products have [...] Read more.
In this modern era, it has become essential to transform waste materials into valuables because of their excessive availability, along with achieving the targets of environmental protocols and waste management policies. With a growing population, the utilization and consumption of agricultural products have been increased extensively. In addition, it has increased the probability of agricultural waste generation. Waste produced from agricultural sources is considered as a viable source for synthesizing economical and ecofriendly catalysts and suitable ways for its disposal are sought. This study is targeted at agricultural waste-derived heterogeneous catalysts, which have been effectively employed for biodiesel generation. The types of agricultural waste, catalyst synthesis techniques, recent literature stated for agricultural waste-derived catalysts to produce biodiesel, the elemental composition and catalytic activity of agricultural waste ashes, the effect of reaction parameters to maximize biodiesel yield and catalyst reusability have been discussed. This work concludes that catalysts derived from agricultural waste are efficient in transesterification reaction, and they are easy to produce, and are cheap and ecofriendly. Moreover, this study encourages researchers to see the options for unexplored agricultural waste, which can be potentially converted into useful materials Full article
(This article belongs to the Special Issue Heterogeneous Catalysts for Biodiesel Production)
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