Vehicle fuel from biogas with carbon membranes; a comparison between simulation predictions and actual field demonstration

被引:23
作者
Haider, Shamim [1 ]
Lindbrathen, Arne [1 ]
Lie, Jon Arvid [1 ]
Carstensen, Petter Vattekar [2 ]
Johannessen, Thorbjorn [1 ]
Hagg, May-Britt [1 ]
机构
[1] Norwegian Univ Sci & Technol, Dept Chem Engn, NTNU, N-7491 Trondheim, Norway
[2] Oksenoyveien 8, N-1360 Fornebu, Norway
关键词
Biogas upgrading; Pilot-scale demonstration; Membrane separation: Process simulations; SEPARATION PERFORMANCE; GAS PERMEATION; HIGH-PRESSURE; PLANT;
D O I
10.1016/j.gee.2018.03.003
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The energy contents of biogas could be significantly enhanced by upgrading it to vehicle fuel quality. A pilot-scale separation plant based on carbon hollow fiber membranes for upgrading biogas to vehicle fuel quality was constructed and operated at the biogas plant, Glor IKS, Lillehammer Norway. Vehicle fuel quality according to Swedish legislation was successfully achieved in a single stage separation process. The raw biogas from anaerobic digestion of food waste contained 64 +/- 3 mol% CH4, 30-35 mol% CO2 and less than one percent of N-2 and a minor amount of other impurities. The raw biogas was available at 1.03 bar with a maximum flow rate of 60 Nm(3) h(-1). Pre-treatment of biogas was performed to remove bulk H2O and H2S contents up to the required limits in the vehicle fuel before entering to membrane system. The membrane separation plant was designed to process 60 Nm(3) h(-1) of raw biogas at pressure up to 21 bar. The initial tests were, however, performed for the feed flow rate of 10 Nm(3) h(-1) at 21 bar. The successful operation of the pilot plant separation was continuously run for 192 h (8 days). The CH4 purity of 96% and maximum CH4 recovery of 98% was reached in a short-term test of 5 h. The permeate stream contained over 20 mol% CH4 which could be used for the heating application. Aspen Hysys (R) was integrated with ChemBrane (in-house developed membrane model) to run the simulations for estimation of membrane area and energy requirement of the pilot plant. Cost estimation was performed based on simulation data and later compared with actual field results. (C) 2018, Institute of Process Engineering, Chinese Academy of Sciences. Publishing services by Elsevier B.V.
引用
收藏
页码:266 / 276
页数:11
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