Biogas is produced by anaerobic fermentation of organic materials (biomass) such as compost, organic waste, sewage sludge, manure, plant residues etc. Biogas is particularly suitable for energy production in so-called biogas plants.
Chemically, biogas is a flammable gas. It is composed very differently depending on the substrate employed and technical workup.
As main constituents generally occur methane and carbon dioxide. Other components are nitrogen, oxygen, hydrogen, ammonia, hydrogen sulfide and water vapor. The interfering gases in the crude biogas (H2S, NH3 and CO2) are deposited prior to combustion.
The production of biogas is a microbial process that occurs in several stages. Starting materials are the carbohydrates, fats and proteins in the biomass. These are converted by the microorganisms through various metabolic pathways in biogas - in absence of oxygen (anoxic conditions; for example, anaerobic digestion).
The following list includes online available information on the chemistry and biochemistry of biogas.
Content, Topics
General Information
Biogas and Biofuels
Basic information
Biogas Composition
Different sources of production lead to different specific compositions
Lecture Notes, Tutorials
Anaerobic Digestion
Four phases of biogas production and other basics
Anaerobic Digestion of Agri-Food By-Products
Scientific basics
Anaerobic Waste Treatment Fundamentals
Chemistry and microbiology - Format: PDF
Biochemical and Thermochemical Conversion
... of biomass into energy and value added products - Format: PDF
Biochemical Conversion of Biomass
Biomethanation, fermentation etc. - Format: PDF
Biochemical Conversion of Biomass
Using enzymes, microbes, and catalysts to make fuels and chemicals - Format: PDF
Biochemical Conversion of Biomass to Biofuels
Pretreatment, detoxification, hydrolysis, fermentation - Format: PDF
Bio-Chemical Process
From waste to energy - Format: PDF
Bioenergy Conversion Systems
Lecture notes
Bioenergy Conversion Technologies
An overview
Biogas
A significant contribution to decarbonising gas markets? - Format: PDF
Biogas - Green Energy
Process, design, energy supply, environment - Format: PDF
Biogas and Anaerobic Digestion
Fundamentals and applications. University of Florida - Format: PDF
Biogas Basics
Fun Facts - Format: PDF
Biogas Energy from Organic Wastes
Lecture notes
Biogas Portal
Encyclopedia with an extensive collection of information and texts
Biogas Production Process
Basics - Format: PDF
Biogas Purification and Utilization
Anaerobic biotechnology for bio-energy production - Format: PDF
Biogas Purification by Adsorption
... and novel washing systems - Format: PDF
Combustion and Heat Release Characteristics
... of biogas under hydrogen- and oxygen-enriched condition - Format: PDF
Domestic Biogas Compact Course
Technology and mass-dissemination experiences from asia - Format: PDF
Energy and Caron
... for green chemistry - Format: PDF
Methane Enrichment of Biogas
Article - Format: PDF
Microbiological Handbook
... for biogas plants - Format: PDF
Microbiological Process Optimization
... of biogas synthesis
Production of Biogas
... by anaerobic digestion - Format: PDF
Partial Information
Purification of Biogas
This review attempts to set out the procedures for removing hydrogen sulphide from biogas
Data and Databases
Biogas Production
WBA 2017
Organisations
American Biogas Council
ABC is the first anaerobic digestion (AD) industry association in the United States that represents a full range of anaerobic digestion technologies and projects, including farm-based digesters, centralized facilities processing a variety of municipal and industrial organic waste streams, and existing digesters at municipal wastewater treatment plants
European Biogas Association
EBA was founded 2009 as a Belgian non-profit organisation aiming to promote sustainable biogas production and use in Europe
Last update: 02.11.2022
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