Characteristics of hydrogen energy yield by co-gasified of sewage sludge and paper-mill sludge in a commercial scale plant

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Title:	Characteristics of hydrogen energy yield by co-gasified of sewage sludge and paper-mill sludge in a commercial scale plant
Authors:	江康鈺;Chiang, Kung-Yuh;Lu, Cheng-Han;Liao, Chun-Kai;Hsien-Ruen Ger, Ray
Contributors:	工學院環境工程研究所
Keywords:	Gasification;Paper-mill sludge;Sewage sludge;Synthetic gas
Date:	2016-12-14
Issue Date:	2026-04-23 15:00:22 (UTC+8)
Publisher:	Elsevier Ltd.;Elsevier Ltd
Abstract:	摘要： This work examines the feasibility of co-gasification of sewage sludge and paper-mill sludge in a commercial scale plant and its application for sludge-to-energy conversion. The results indicated that the thermal reaction activity is increased with an increase in the amount of sewage sludge. This is due to the sewage sludge contains less fixed carbon content could decrease the activation energy, resulting in a thermal reaction is significantly enhanced. The synthetic gas (syngas) composition, that includes H2 and CO, ranged from percentages of 2.59%–4.13% and 3.2%–6.91%, respectively. The heating value of the produced gas ranged from 1.67 MJ/Nm3 to 2.56 MJ/Nm3, which was coupled with cold gas efficiency (CGE) that ranged from 46.6% to 77%. In the case of two tons of wet tested sludge with 67% moisture content, it could produce one ton of dry tested sludge with 30% moisture content after a drying process, and produce approximately 2.2 tons of syngas in gasification. After using a boiler and heat exchanger for energy recovery, it is possible to recover 4.46 tons of steam. This steam could provide energy for the dryer, and constitutes a positive sum on the energy balance in a commercial scale gasification plant. •Co-gasification of sewage sludge and paper-mill sludge in a commercial plant had been established.•The heating value of the produced gas ranged from 1.67 MJ/Nm3 to 2.56 MJ/Nm3.•The produced steam could provide enough energy for the requirement of a dryer so that no other alternative fuel is needed. 出版者： Elsevier Ltd 出版日期： 2016-12-14 出處： International journal of hydrogen energy, 2016-12, Vol.41 (46), p.21641-21648 資源來源： Elsevier ScienceDirect Journals Complete 版權： 2016 Hydrogen Energy Publications LLC 識別號： ISSN: 0360-3199 識別號： EISSN: 1879-3487 識別號： DOI: 10.1016/j.ijhydene.2016.06.199
Appears in Collections:	[Graduate Institute of Environmental Engineering ] journal & Dissertation

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