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Investigation of thermal integration between biogas production and upgrading
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2015 (English)In: Energy Conversion and Management, ISSN 0196-8904, E-ISSN 1879-2227, Vol. 102, 131-139 p.Article in journal (Refereed) Published
Abstract [en]

Thermal integration of anaerobic digestion (AD) biogas production with amine-based chemical absorption biogas upgrading has been studied to improve the overall efficiency of the intergraded system. The thermal characteristics have been investigated for industrial AD raw biogas production and amine-based chemical absorption biogas upgrading. The investigation provides a basic understanding for the possibilities of energy saving through thermal integration. The thermal integration is carried out through well-defined cases based on the thermal characteristics of the biogas production and the biogas upgrading. The following factors are taken into account in the case study: thermal conditions of sub-systems, material and energy balances, cost issues and main benefits. The potential of heat recovery has been evaluated to utilise the waste heat from amine-based upgrading process for the use in the AD biogas production. The results show that the thermal integration has positive effects on improving the overall energy efficiency of the integrated biogas plant. Cost analysis shows that the thermal integration is economically feasible.

Place, publisher, year, edition, pages
2015. Vol. 102, 131-139 p.
Keyword [en]
Anaerobic digestion (AD) biogas production, Biogas upgrading, Amine based chemical absorption, Thermal integration, Energy saving, Cost analysis
National Category
Chemical Sciences Energy Engineering
URN: urn:nbn:se:kth:diva-173133DOI: 10.1016/j.enconman.2015.03.023ISI: 000358809400014ScopusID: 2-s2.0-84947487777OAI: diva2:855045

QC 20150918

Available from: 2015-09-18 Created: 2015-09-07 Last updated: 2015-09-18Bibliographically approved

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Chekani, ShabnamLiu, Longcheng
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