Showing results for: biogas carbon dioxide Articles
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Autogenerative high pressure digestion: anaerobic digestion and biogas upgrading in a single step reactor system
Conventional anaerobic digestion is a widely applied technology to produce biogas from organic wastes and residues. The biogas calorific value depends on the CH4 content which generally ranges between 55 and 65%. Biogas upgrading to so-called ‘green gas’, with natural gas quality, generally proceeds with add-on technologies, applicable only for biogas flows >100 m3/h. In the concept of ...
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From the biogas to vehicle fuel
The biogas consists mainly of methane and carbon dioxide. Other components can be water and sulphur, mainlyhydrogen sulphide. To be able to use the biogas as vehicle fuel or to distribute it in natural gas grids the gas has to becleaned and upgraded. The biogas is upgraded by removing carbon dioxide to raise the calorific value and create a gaswith constant quality. One of the techniques to ...
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Evaluation of the simultaneous biogas upgrading and treatment of centrates in a high-rate algal pond through C, N and P mass balances
The simultaneous capture of CO2 from biogas and removal of carbon and nutrients from diluted centrates in a 180 L high-rate algal pond (HRAP) interconnected to a 2.5 L absorption column were evaluated using a C, N and P mass balance approach. The experimental set-up was operated indoors at 75 μE/m2·s for 24 h/d at 20 days of hydraulic retention time for 2 months of steady state, ...
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Environmental and energetic benefits derived from the anaerobic digestion of agroindustrial wastes
Agrifood industry plays a relevant role in the economic development of the autonomous community of Extremadura (Spain), and generates vast volumes of wastes featured by both high polluting potential and moisture content. The present work reports on a detailed analysis of biogas generation from the anaerobic digestion of industrial tomato residues and slaughterhouse wastes, in this way, yields ...
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Biohydrogen production from tequila vinasses using a fixed bed reactor
In Mexico, the industrial production of tequila leads to the discharge of more than 31.2 million of m3 of vinasse, which causes serious environmental issues because of its acidity, high organic load and the presence of recalcitrant compounds. The aim of this research was to study the feasibility of a fixed bed reactor for the production of biohydrogen by using tequila vinasse as substrate. The ...
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Fluidized bed drying system at Ara Region Bern AG, Berne, Switzerland - Case Study
Fluidized bed drying system at ARA REGION BERN AG, Berne, Switzerland Already a leader in environmental sustainability, ara region bern ag (arabern) in Switzerland had an ambitious plan to produce renewable energy. Their plant has used digestion gas for heating processes in the wastewater treatment plant. But a new concept would take the plant’s energy efficiency and environmental ...
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Biogas from grass clippings
Biogas is a mixture of various types of gases, largely methane and CO2. Biogas is produced by a process called “anaerobic digestion”, which is the bacterial fermentation – without O2 – of biomass that can include: agro-industrial waste, solid and liquid waste from livestock farms, sewage sludge, by-products from agriculture, the organic fraction of solid urban waste ...
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Estimates of CO2 emissions reduction and potential power generation from biogas at Mare Chicose landfill
In this study, the annual generation of Landfill Gas (LFG) and methane using the Scholl-Canyon model have been predicted for 1998-2030 for five scenarios of landfill management at the Mare Chicose landfill in Mauritius. Using the Approved Large-Scale Methodology AM003 and Approved Baseline Methodology AM0010 of the Approved Methodologies for CDM activities, the carbon dioxide (CO2) emissions ...
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Xebec powers an energy revolution case study
Rumpke Landfill Biogas Project at a Glance: Type: Landfill biogas to pipeline-quality renewable natural gas Claim to fame: One of the largest gas recovery operations of its kind in the world Location: Cincinnati, Ohio Number of acres-landfill: 230 (93 hectares) Waste received annually: Two million tons Plant refining capacity: 15 million cubic feet of landfill gas per day Distribution: 25,000 ...
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Energy from food waste at Premier Foods in Wales
Location Rogerstone/Wales Capacity 499 kWel In operation since 03/2011 Input materials Food waste Features The ready-meals factory derives its energy supply from food waste. The plant is located next to the Rogerstone Park ready-meals factory of RF Brookes, a subsidiary of food company Premier Foods. Its purpose is to generate energy from the food waste produced by the company. The biogas ...
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Biogas Purification Project of Bene-Sino Corperition - Case Study
Bio-natural gas is green, low-carbon, clean and renewable natural gas produced by anaerobic fermentation, purification and purification of various urban and rural organic wastes such as crop straw, livestock and poultry manure, food waste, agricultural and sideline product processing wastewater, etc. The biogas residue produced in the oxygen fermentation process can produce organic fertilizer. ...
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No Pipeline for Renewable Natural Gas Projects? No problem. Use Virtual Pipeline Technology
On site biogas production Biogas can be produced from various organic resources of which the most common are agricultural waste, municipal waste, landfills, and wastewater treatment facilities. But biogas upgrading is also very much applicable in the (food & beverage) industry. Through biogas upgrading, trace impurities and carbon dioxide (CO2) in raw biogas are separated from methane (CH4) ...
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Biogas cleaning / conditioning - A requirement for optimal functioning of CHP systems
Biogas is obtained through the anaerobic decomposition (putrefaction) of organic matter. It contains methane (CH4) in varying proportions, ranging from 35% to 70%, a proportion which largely depends on production methods and the materials involved in the process. This methane concentration is what enables biogas to be used as fuel. The release of methane into the atmosphere contributes to an ...
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Veneto 01 - ZE-50-LT - Jenbacher Biogas-Fueled Genset - Case Study
Plant: 1 x ZE-50-LT Low-Temperature Organic Rankine Cycle (ORC) Module, nominal output 50 kWe Nominal output: 50 kWe Application: Heat recovery from engines (Jenbacher biogas-fueled genset) Location: Province of Venice, Veneto, Italy Manager: Private Italian firm The client who commissioned this plant is a livestock farm specializing in cattle and located in the province of Venice, Italy, ...
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Lombardy 01 - ZE-50-ULH - Two Jenbacher Biogas-Fueled Gensets - Case Study
Plant: 1 x ZE-50-LT Low-Temperature Organic Rankine Cycle (ORC) Module, nominal output 50 kWe Nominal output: 50 kWe Application: Heat recovery from engines (two Jenbacher biogas-fueled gensets) Location: Province of Mantua,Lombardy,Italy Manager: Private italian firm The client, located in the province of Mantua, Lombardy, Italy is a livestock farm specializing in pigs, which has decided to ...
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Desulfuration of Biogas
ORIGIN, EFFECTS AND TREATMENTS The elimination of hydrogen sulfide (H2S) in biogas becomes a necessity not only to keep the pipelines, machines and equipment involved in its transportation, use and application in good condition but also, and above all, to preserve the life of all the personnel in charge of the operation and maintenance of the biogas production stations, as well as ...
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Biogas Cleaning
Removal of water vapor Origin In the biogas production process, water is an intrinsic part of both the material to be digested (biomass) and the process itself. Furthermore, water is the medium in which biogas production takes place, regardless of whether the digestion process is dry or wet, the biogas produced will contain water vapour. The amount of water vapour contained in the biogas ...
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