Biochar Based Catalysts
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Biochar-Based Catalysts
Author: Showkat Ahmad Bhawani
language: en
Publisher: Springer Nature
Release Date: 2024-09-26
This book reviews comprehensively the field and development of biochar-based catalyst by summarizing fundamental approaches and principles to prepare biochar and biochar-based catalysts and focusing on the main applications of biochar-based catalysts in environmental remediation. Biochar is a low-cost carbonaceous material produced from biomass and is regarded as an economical substitute to the activated carbon. The coverage of book highlights the most exciting applications of biochar-based catalysts in different reactions such as oxidation, reduction, hydrolysis, isomerization, dehydration, etc. The book is useful for the academics and researchers who are interested in the development biochar-based catalysts with background in material science, chemical engineering, environmental engineering and environmental chemistry.
Biochar from Biomass and Waste
Biochar from Biomass and Waste: Fundamentals and Applications provides the fundamentals of biochar, such as its basic concepts, production technology and characterization methods, also including comprehensive examples for readers. This book includes information on state-of-art biochar application technologies in the fields of agriculture, energy and environmental sciences with step-by-step case studies. Biochar has received worldwide interests in the past decade because it encompasses high priority research areas, including bioenergy production, global warming mitigation and sustainable agriculture. - Offers comprehensive coverage of biochar production, characterization and modification methods - Provides global case studies covering a wide range of application fields, including environmental, agricultural, syngas and bio-oil - Covers the sustainability and future of biochar
Developing Biochar-based Catalyst for Biodiesel Production
A biochar-based catalyst was successfully prepared by sulfonation of pyrolysis char with fuming sulphuric acid. Prepared catalyst was studied for its ability to catalyze transesterification of vegetable oils (i.e., Canola Oil) and esterification of free fatty acids (i.e., oleic acid) using methanol. Thus far, biochar-based catalyst has shown significant activity,>90% conversion, in esterification of FFAs while indicating limited activity for transesterification of triglyceride-based oils such as Canola Oil. The first step in catalyst development approach was to increase the transesterification activity through employing a stronger sulfonation procedure. The total acid density of the biochar-based catalyst increased by ~90 times resulting in significantly increased transesterification yield (i.e., from being almost negligible to ~9%). Further investigations on the biochar-based catalyst were conducted to determine the effect of sulfonation time (5 and 15 h) and surface area on the transesterification reaction. Two established activation techniques (i.e., chemical activation with KOH and the silica template method) have been utilized to develop the surface area and porosity of the biochar supports. The surface area of the biochar support increased from a typical 0.2 m2/g to over 600 m2/g. In the chemical activation method with KOH, the effect of activation temperature on the transesterification yield has been investigated. Three biochar-based catalysts with activated supports at three different temperatures (450, 675 and 875C) were prepared and compared for transesterification activity. The sulfonated catalysts were characterized using the following analyses: BET surface area, elemental analysis, total acid density, Fourier Transform Infra-Red (FT-IR) spectroscopy, and X-Ray Diffraction iii (XRD) spectroscopy. The catalyst supported on biochar activated at 675C resulted the maximum transesterification yield (18.9%). The reaction yield was dependent on both catalyst s.