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Investigation of the influence of coal swelling on permeability characteristics using natural brown coal and reconstituted brown coal specimens

Jasinge, D.; Ranjith, P.G.; Choi, Xavier; Fernando, J. - In: Energy 39 (2012) 1, pp. 303-309

Permeability has been identified as one of the foremost factors that determine the effectiveness of CO2 sequestration in deep coalbeds. Coal matrix swelling can cause a remarkable decrease in the permeability of a coalbed reservoir during the carbon dioxide injection process. The main aim of...

Persistent link: https://www.econbiz.de/10010809432

An exergy analysis of small-scale liquefied natural gas (LNG) liquefaction processes

Remeljej, C.W.; Hoadley, A.F.A. - In: Energy 31 (2006) 12, pp. 2005-2019

refrigerant (SMR), a two-stage expander nitrogen refrigerant and two open-loop expander processes. Steady-state simulations were … the main difference between processes. A more general comparison suggested that the nitrogen refrigerant process and the …

Persistent link: https://www.econbiz.de/10010811879

Effect of low temperature on the flammability limits of methane/nitrogen mixtures

Li, Zhenming; Gong, Maoqiong; Sun, Eryan; Wu, Jianfeng; … - In: Energy 36 (2011) 9, pp. 5521-5524

flammability limits of methane/nitrogen mixtures in air were measured at atmospheric pressure and wide temperature range from 150 … UFL is more sensitive than that in the LFL as the molar ratio of nitrogen to methane increases. In addition, an extended …

Persistent link: https://www.econbiz.de/10011055451