scispace - formally typeset
Search or ask a question
Topic

Biogas

About: Biogas is a research topic. Over the lifetime, 28571 publications have been published within this topic receiving 498545 citations.


Papers
More filters
Journal ArticleDOI
TL;DR: In this article, the use of electrochemical reduction of CO 2 at a copper electrode to a hydrocarbon mixture looks like a promising technology, especially when applied to upgrading biogases.

218 citations

Journal ArticleDOI
TL;DR: In this article, two different biowaste composting techniques were compared with regard to their overall emission of volatile compounds during the active composting period, and a strong difference in emission profile as a function of time between different groups of volatiles was observed.

218 citations

Journal ArticleDOI
TL;DR: The trends in research and development (R&D) such as development of efficient biogas upgrading technologies, adsorbents, reduction in cost and methane loss have been thoroughly evaluated.
Abstract: Biogas is acknowledged as one of the foremost bioenergy to address the current environmental and energy challenges being faced by the world. Commonly, biogas is used for applications like cooking, lighting, heat and power production. To widen the scope of biogas application, like transportation, natural gas grid injection and substrate for the production of chemicals and fuel cells, mainly CO2, H2S and other impurities need to be removed by various upgrading technologies. It is an important process to produce biomethane with above 90% methane. There are various physico-chemical (adsorption, absorption, cryogenic and membrane separations) and biological (in situ and ex situ) processes for biogas upgradation, and each process is site and case specific. The aim of the present paper is to thoroughly evaluate the existing and emerging biogas upgrading technologies. Analysis of each technology with respect to basis of operations, energy requirement, methane purity and recovery and cost economics has been carried out. A thorough analysis has been done on the major hurdles and the research gaps in this sector. For a wider and successful implementation of the biogas upgradation technology, the trends in research and development (R&D) such as development of efficient biogas upgrading technologies, adsorbents, reduction in cost and methane loss have been thoroughly evaluated.

217 citations

Journal ArticleDOI
TL;DR: In this paper, two coupled anaerobic sequencing batch reactors (ASBR) operated at mesophilic temperature were used for fruit and vegetable waste anaerobatic digestion, and the effect of increasing loading rates on the acidification step was investigated.

217 citations

Journal ArticleDOI
TL;DR: In this paper, a new technique for sampling, identification, and quantification of siloxanes and volatile organic carbon (VOC) in landfill gas and sewage gas is presented, after sample collection using evacuated stainless steel canisters biogas was analyzed by gas chromatography-mass spectrometry/atomic emission spectroscopy.
Abstract: Biogases such as landfill gas and sewage gas undergo a combustion process which is generating electric energy. Since several trace compounds such as siloxanes (also halogenated and sulfur compounds) are known to cause severe problems to these gas combustion engines, they are of particular interest. In this work, a new technique for sampling, identification, and quantification of siloxanes and volatile organic carbon (VOC) in landfill gas and sewage gas is presented. After sample collection using evacuated stainless steel canisters biogas was analyzed by gas chromatography-mass spectrometry/atomic emission spectroscopy (GC-MS/AES). Using gas canisters, the sampling process was simplified (no vacuum pump needed), and multiple analysis was possible. The simultaneous application of MSD and AED allowed a rapid screening of silicon compounds in the complex biogases. Individual substances were identified independently both by MSD analysis and by determination of their elemental constitution. Quantification of tr...

217 citations


Network Information
Related Topics (5)
Biomass
57.2K papers, 1.4M citations
88% related
Renewable energy
87.6K papers, 1.6M citations
86% related
Wind power
99K papers, 1.5M citations
78% related
Organic matter
45.5K papers, 1.6M citations
77% related
Combustion
172.3K papers, 1.9M citations
77% related
Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20231,542
20223,366
20211,883
20202,203
20192,237
20182,221