Results 241 to 250 of about 2,368,810 (278)

Rethinking biological activation of methane and conversion to liquid fuels

Nature Chemical Biology, 2014
If methane, the main component of natural gas, can be efficiently converted to liquid fuels, world reserves of methane could satisfy the demand for transportation fuels in addition to use in other sectors. However, the direct activation of strong C-H bonds in methane and conversion to desired products remains a difficult technological challenge.
Chad A, Haynes, Ramon, Gonzalez
openaire   +2 more sources

Biological Methanation in a Trickle-bed Reactor

2018
Proceedings of the 26th European Biomass Conference and Exhibition, 14-17 May 2018, Copenhagen, Denmark, pp.
Weidlich, T., Neubert, M., Dillig, M., Karl, J.   +3 more
openaire   +1 more source

Biological conversion of methane to liquid fuels: Status and opportunities

Biotechnology Advances, 2014
Methane is the main component of natural gas and biogas. As an abundant energy source, methane is crucial not only to meet current energy needs but also to achieve a sustainable energy future. Conversion of methane to liquid fuels provides energy-dense products and therefore reduces costs for storage, transportation, and distribution.
Xumeng, Ge, Liangcheng, Yang, Johnathon P, Sheets, Zhongtang, Yu, Yebo, Li   +4 more
openaire   +2 more sources

Biological Formation and Consumption of Methane

1993
Methane is an important product formed during the bacterial degradation of organic matter in environments such as flooded soils, wetlands, estuaries, marine and freshwater sediments, and the gastrointestinal tract of animals (Whitman et al., 1992). This chapter describes the conditions that lead to biogenic methane formation in natural environments ...
openaire   +1 more source

Biological Conversion of Syngas into Methane

2010
In this chapter two biological pathways from syngas towards methane are proposed. With the indirect acetate pathway, the methane producing bacteria do not have contact with the syngas and the methane producing bacteria (f.i. M. Barkeri and Methanothrix Soehngenii) use acetate as a substrate only.
openaire   +1 more source

Biological Methane Oxidation: Regulation, Biochemistry, and Active Site Structure of Particulate Methane Monooxygenase

Critical Reviews in Biochemistry and Molecular Biology, 2004
Particulate methane monooxygenase (pMMO) is a three-subunit integral membrane enzyme that catalyzes the oxidation of methane to methanol. Although pMMO is the predominant methane oxidation catalyst in nature, it has proved difficult to isolate, and most questions regarding its molecular structure, active site composition, chemical mechanism, and ...
Raquel L, Lieberman, Amy C, Rosenzweig
openaire   +2 more sources

Use of a biologically active cover to reduce landfill methane emissions and enhance methane oxidation

Waste Management, 2007
Biologically-active landfill cover soils (biocovers) that serve to minimize CH4 emissions by optimizing CH4 oxidation were investigated at a landfill in Florida, USA. The biocover consisted of 50 cm pre-composted yard or garden waste placed over a 10-15 cm gas distribution layer (crushed glass) over a 40-100 cm interim cover. The biocover cells reduced
Jennifer C, Stern, Jeff, Chanton, Tarek, Abichou, David, Powelson, Lei, Yuan, Sharon, Escoriza, Jean, Bogner   +6 more
openaire   +2 more sources

Biological methane activation - lessons for the chemists

Catalysis Today, 1992
Approximately 3.5 x lo9 years ago when this planet had cooled down sufficiently to allow the permanent existence of water the atmosphere consisted primarily of methane ammonia and hydrogen with traces of C02, N2, H2S and a few noble gases. The primitive life forms which evolved around this time were anaerobic bacteria usin produced by electrical I ...
openaire   +1 more source

Biological production of methane from energy crops

Biotechnology and Bioengineering, 1979
AbstractLaboratory studies at the University of Missouri‐Rolla have demonstrated the feasibility of producing methane by anaerobic digestion of various of crop materials, such as grasses and corn stalks. These studies indicate that up to 6.0 f3methane are produced/b crop material destroyed.
E. C. Clausen, O. C. Sitton, J. L. Gaddy
openaire   +1 more source

Biological treatment of coals for their conversion to methan

1995
Publisher Summary This chapter discusses the biological treatment of coals for their conversion to methane. For coals treatment anaerobe enrichment associations of microorganisms from decomposed traces of plants, lake's sapropel and coal's waste are used.
openaire   +1 more source