methane cogeneration Articles

  • Methane Number

    Did you know that the methane number of a gas provides an indication of the knock tendency of a fuel? It is a product of the different constituent gases within the natural gas, particularly the proportions of methane, ethane, propane and butane. Understanding the knock resistance is important when specificing an engine for a gas-powered ...


    By Clarke Energy

  • The Beltran biomass cogeneration system

    An effective, economical solution for harvesting safe, renewable domestic energy, mitigating wastes and achieving environmental goals. Background The Beltran Biomass Cogeneration System (BBCS) is an integrated, three-stage process that uses proprietary gasification technology to convert biomass and other organic wastes into versatile, cleanburning synthesis gas. The purified ...


    By Beltran Technologies, Inc.

  • Bolivar wastewater treatment plant cogeneration facility to be Installed by Clarke Energy - Case Study

    The Bolivar Wastewater Treatment Plant (WWTP) is the largest wastewater treatment plant in the Adelaide region, processing almost 70% of Adelaide’s metropolitan wastewater. The South Australian Government has approved a $25.8 ...


    By Clarke Energy

  • Digester Gas Powers Energy Conservation at Baltimore`s Back River WWTP

    Performance contracting provided the City of Baltimore and the Back River Wastewater Treatment Plant with the expertise and guaranteed savings to warrant implementation of a significant digester gas utilization system as well as other energy saving facility improvements. The Back River process for wastewater treatment resulted in solids that were digested, producing methane gas, a good portion of ...

  • Using biogas for combined heat and power

    An integral part of the majority of anaerobic digestion facilities across the world is the CHP combined heat and power (CHP) engine. For the first time builder of a biogas plant, it is often neglected as the focus is on reducing the capital costs ...


    By Clarke Energy

  • Using biogas for combined heat and power

    An integral part of the majority of anaerobic digestion facilities across the world is the CHP combined heat and power (CHP) engine. For the first time builder of a biogas plant, it is often neglected as the focus is on reducing the capital costs ...


    By Clarke Energy

  • Optimization of Anaerobic Digestion & Bio-Organic Catalyst Compositions (BOCs)

    Abstract: Anaerobic digestion offers excellent opportunities to convert organic waste streams into environmentally safe bio-solids and generation of renewable energy through the bio-methane produced by the microbiological populations processing the wastes. Bio-organic catalyst compositions (BOCs) offer improvements in enhancing anaerobic biological activity and raising bio-methane ...


    By EcoJump LLC

  • Clarke Energy applauded for its ongoing adaptation to the biogas market

    French magazine Energie Plus has put Clarke Energy forward as a good example of a traditional key player adjusting to the constant developing biogas sector. The article shows that today’s companies have to adapt to the markets to survive. It demonstrates Clarke Energy being an inspiring case of a company that has looked at innovative possibilities to handle that new and constantly changing ...


    By Clarke Energy

  • Case study - Purification of biogas in EDAR Mapocho

    BIOCONSERVACION: Integral solution for biogas purification in WWTPs Biogas is mainly composed by methane and carbon dioxide as a result of organic matter fermentation in the absence of air by the action of a microbial consortium (anaerobic digestion). The composition of biogas depends entirely on the nature of the waste processed and the conditions under which takes place the anaerobic digestion. ...


    By Bioconservacion SA

  • Treatment of wastewater from anaerobic digestion

    The Client The customer is power plant which produces biogas from biomass and sewage farm, through anaerobic digestion and thermal recovery, located nearby Munich in Germany. The Client’s needs Biogas is produced by the fermentation of organic substances of animal and vegetal origin in absence of oxygen (anaerobic process). This process produces a ...

  • Maximizing Energy Recovery through Digester Gas Management System Enhancement

    ABSTRACTAdvanced anaerobic digestion practices and maximum energy recovery call for a digester gas system that reliably allows for complete biogas collection and utilization. This paper will describe the planning, design, and construction of a new digester gas management system at the East Bay Municipal Utility District’s (District) Main Wastewater Treatment Plant. The need for an upgraded ...

  • Economical and Effective biogas process to Purify alternative fuels for Power generation

    Abstract Energy recovery from biogas is becoming more common, but the processes are hampered with the presence of hydrogen sulfide (H2S). Biogas is a mixture of methane and carbon dioxide (CO2) and is often contaminated with toxic quantities of H2S. Sources of biogas are: municipal landfills that produce landfill gas (LFG); wastewater treatment plants; industrial plants; and large scale ...


    By Eco-Tec Inc.

  • Analysis of greenhouse gas emissions from 10 biogas plants within the agricultural sector

    With the increasing number of biogas plants in Germany the necessity for an exact determination of the actual effect on the greenhouse gas emissions related to the energy production gains importance. Hitherto the life cycle assessments have been based on estimations of emissions of biogas plants. The lack of actual emission evaluations has been addressed within a project from which the selected ...


    By IWA Publishing

  • Cambi thermal hydrolysis combined with thermophilic/mesophilic digestion - from pilot to full scale application at Hamar Wwtp

    ABSTRACTDuring 2001-2003 the city and county of San Francisco completed a two-year pilot study of pre-treatment processes to mesophilic anaerobic digestion for improved biosolids stabilization and production of biosolids suitable for unrestricted  reuse (class A biosolids). The pre-treatment options investigated included: A thermophilic (55 °C; TP) process with 5 days hydraulic ...


    By Cambi AS

  • Oxidation Catalysts for Co-Generation Plant

    Description Manuli Film, Naples, Italy, with three (3) Rolls Royce KVGS-18G2, lean burn, natural gas engines, each 3030 kW electrical. Thermal power is utilized both from exhaust gas and cooling water for plastic film production. Challenge Required to meet emission standard of 400 mg/Nm3 @ 5% O2 for carbon monoxide and 150 mg/Nm3 @ 5% O2 non-methane hydrocarbons. Solution ...


    By DCL International Inc.

  • Development of Pre-Turbo Catalyst for Natural Gas Engines

    Distributed power generation is an efficient method for reducing CO2 emissions through the elimination of transmission losses. Co-generation has similar benefits with higher thermal efficiency. Natural gas engines are very popular for these applications. Unfortunately, these engines emit significant levels of methane, ...


    By DCL International Inc.

  • Microturbines, Gas Engines Link Biogas to the Grid

    OPPORTUNITIES to produce electricity from methane are being improved continuously as manufacturers introduce new and upgraded equipment to address market needs and varying characteristics of raw biogas. In the renewable energy from organics recycling arena, the two primary types of electricity generation equipment are microturbines and reciprocating gas engines. This article provides a brief ...


    By BioCycle Magazine

  • Case study - From mines to the slopes

    At ABUTEC, the only thing we like more than having fun is helping OTHERS have fun! That’s why we were excited about a project recently with the Oxbow Coal Mine in Somerset, Colo. For more than 100 years, Oxbow has been free-venting all of the methane from the mine, which ends up being approximately $1 million worth of fuel sent into the atmosphere with nothing to show for it. However, ...


    By ABUTEC LLC

  • Assessing Feasibility of Direct Drive Technology for Energy Recovery from Digester Biogas

    ABSTRACTThe Regional Municipality of Waterloo completed a study, with support from Environment Canada, to evaluate the feasibility of using direct drive technology to recover energy from digester biogas. The study identified that a 150 HP engine, operating at 54 % load, could be supported by the estimated gas production of 1560 m3/d with 63 % methane by volume. ...

  • Generation using gas-fuelled engines in South Africa – an overview

    Most gas engines are Otto cycle spark ignition internal combustion reciprocating engines using natural gas as the primary fuel. Smaller models utilise stochiometric combustion while the larger engines are lean burn engines with pre-chamber ignition systems. The engines are coupled with packaged generator sets, ...


    By Clarke Energy

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you