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Energy savings by co-production: A methanol/electricity case study

Guang-jian Liu, Zheng Li, Ming-hua Wang and Wei-dou Ni

Applied Energy, 2010, vol. 87, issue 9, 2854-2859

Abstract: The overall exergy losses of co-production systems were decomposed into five sub-systems: chemical reaction processes, heat exchange processes, external exergy losses, turbine/mechanical exergy losses and others. By defining new parameters called energy-saving factors, we quantitatively describe the contribution of these processes to the overall energy savings relative to separate production systems. A methanol/electricity co-production system is taken as case study, results show that heat exchange processes are the main contribution to the energy savings.

Keywords: Co-production; system; Coal; gasification; Exergy; analysis; Energy-saving; factor (search for similar items in EconPapers)
Date: 2010
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Handle: RePEc:eee:appene:v:87:y:2010:i:9:p:2854-2859