Effect of hydrogen addition on the performance of a biogas fuelled spark ignition engine

Porpatham, E.; Ramesh, A.; Nagalingam, B.

doi:10.1016/j.ijhydene.2006.09.001

Cited by 245 publications

(88 citation statements)

References 14 publications

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“…Biohythane is a combustible gas, consisting in 10 % H 2 , 30 % CO 2 and 60 % CH 4 (Cavinato et al 2011). The use of 10 % H 2 in the biohythane blend, enhance combustion, thermal efficiency and power output compared to biomethane, together with reducing hydrocarbon emissions (Sierens and Rosseel 2000; Porpatham et al 2007).…”

Section: Biomethane Biohythane and Biosyngas Productionmentioning

confidence: 99%

Dark fermentation biorefinery in the present and future (bio)chemical industry

Bastidas‐Oyanedel

Bonk

Thomsen

et al. 2015

Rev Environ Sci Biotechnol

133

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Dark fermentation, also known as acidogenesis, involves the transformation of a wide range of organic substrates into a mixture of products, e.g. acetic acid, butyric acid and hydrogen. This bioprocess occurs in the absence of oxygen and light. The ability to synthesize hydrogen, by dark fermentation, has raised its scientific attention. Hydrogen is a nonpolluting energy carrier molecule. However, for energy generation, there is a variety of other sustainable alternatives to hydrogen energy, e.g. solar, wind, tide, hydroelectric, biomass incineration, or nuclear fission. Nevertheless, dark fermentation appears as an important sustainable process in another area: the synthesis of valuable chemicals, i.e. an alternative to petrochemical refinery. Currently, acetic acid, butyric acid and hydrogen are mostly produced by petrochemical reforming, and they serve as precursors of ubiquitous petrochemical derived products. Hence, the future of dark fermentation relies as a core bioprocess in the biorefinery concept. The present article aims to present and discuss the current and future status of dark fermentation in the biorefinery concept. The first half of the article presents the metabolic pathways, product yields and its technological importance, microorganisms responsible for mixed dark fermentation, and operational parameters, e.g. substrates, pH, temperature and head-space composition, which affect dark fermentation. The minimal selling price of dark fermentation products is also presented in this section. The second half discusses the perspectives and future of dark fermentation as a core bioprocess. The relationship of dark fermentation with other (bio)processes, e.g. liquid fuels and fine chemicals, algae cultivation, biomethane-biohythane-biosyngas production, and syngas fermentation, is then explored.

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Section: Biomethane Biohythane and Biosyngas Productionmentioning

confidence: 99%

Dark fermentation biorefinery in the present and future (bio)chemical industry

Bastidas‐Oyanedel

Bonk

Thomsen

et al. 2015

Rev Environ Sci Biotechnol

133

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“…It also contains a small percentage of H2S which can cause corrosion problems. Water scrubbing has been introduced as an effective method of eliminating CO2 and H2S in biogas [11][12]. Yet biogas is attractive as an eco-friendly renewable energy resource and the biogas price is 30~40% cheaper than CNG fuel.…”

Section: Introductionmentioning

confidence: 99%

Study on performance and exhaust gas characteristics when biogas is used for CNG converted gasoline passenger vehicle

Choi¹,

Baik²,

Lee³

2014

ces

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Because the of limitations of conventional fossil fuel reserves and worse environmental pollution including global warming effect, alternative energy will continue to be in demand. In Korea, CNG vehicles have been increased specially in metropolitan city buses. However, passenger vehicles fuelled with CNG have not been produced due to the infrastructure of gas stations. And CNG gas stations for CNG fuel are available at only bus garages. Many conventional passenger gasoline vehicles have been converted for the CNG fuel supply because the CNG fuel is cheaper than gasoline fuel. Meanwhile, biogas is much cheaper than CNG fuel but it has many different gas mixtures and heat release rate and 1254 Sul-Ki Choi, Doo-Sung Baik and S. W. Lee engine power are relatively lower than CNG fuel. This study aims to provide problems in converting to CNG vehicle by understanding vehicle performance and emission characteristics when biogas fuel is applied to a CNG converted gasoline passenger vehicle.

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“…There is an improvement in thermal efficiency and power output of a biogas fuelled spark ignition engine with very lean mixtures and a hydrogen concentration of 15% [9]. But utilization and application and implementation of this idea is far from easy especially in the developing word particularly in providing hydrogen for this purpose.…”

Section: Introductionmentioning

confidence: 99%

Method on Conversion of Gasoline to Biogas Fueled Single Cylinder of Four Stroke Engine of Electric Generator

Nindhia¹,

Surata²,

Atmika³

et al. 2013

IJESD

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Abstract-The Gasoline fueled single cylinder generator engine are well established and available in the market with reasonable price, in the other hand the biogas fueled engine for electric generator is not well established yet in the market. The biogas energy is easy to produce therefore the price for the biogas is very much cheaper than the gasoline. The purpose of this research is to find conversion method from gasoline to biogas fuelled of the single cylinder four stroke engine of electric generator. For this purpose the biogas should be upgraded to the level of zero impurities of hydrogen sulfide H 2 S, water (H 2 O) and reducing up to zero level of CO 2 impurities. The carburetor of the gasoline engine was replaced and only component of the mixer of the fuel and air were used. The intake of the biogas fueled should be completed with valve that can be opened automatically by vacuum of the suction stroke of the engine and compression ration of the engine should be increased until reach 9:1 of compression ratio. With this conversion method, the engine of the electric generator used for this research is run well and possible to reach maximum capacity that can be achieved by using gasoline previously.

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Effect of hydrogen addition on the performance of a biogas fuelled spark ignition engine

Cited by 245 publications

References 14 publications

Dark fermentation biorefinery in the present and future (bio)chemical industry

Dark fermentation biorefinery in the present and future (bio)chemical industry

Study on performance and exhaust gas characteristics when biogas is used for CNG converted gasoline passenger vehicle

Method on Conversion of Gasoline to Biogas Fueled Single Cylinder of Four Stroke Engine of Electric Generator

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