Coupling hydrogen separation with butanone hydrogenation in an electrochemical hydrogen pump with sulfonated poly (phthalazinone ether sulfone ketone) membrane

JOURNAL OF POWER SOURCES

卷:327

Article

Huang, Shiqi¹  Wang, Tao^1,3  Wu, Xuemei¹  Xiao, Wu¹  Yu, Miao¹  Chen, Wei¹  Zhang, Fengxiang²  He, Gaohong^1,2 

[1] Dalian Univ Technol, Sch Chem Engn, R&D Ctr Membrane Sci & Technol, State Key Lab Fine Chem, Dalian 116023, Peoples R China

[2] Dalian Univ Technol, Sch Petr & Chem Engn, Panjin Campus, Panjin 124221, Peoples R China

[3] Sinopec Nanjing Engn & Construct Inc SNEI, 1189 Kejian Rd Jiangning Dist, Nanjing 211100, Jiangsu, Peoples R China

关键词: Electrochemical hydrogen pump (EHP);    SPPESK membrane;    Hydrogenation;    Hydrogen separation;    Electrochemistry;   

DOI  :  10.1016/j.jpowsour.2016.07.025

来源: Elsevier

【 摘 要 】

This work reports the novel work of coupling H-2/CO2 separation with biomass-derived butanone hydrogenation in non-fluorinated sulfonated poly (phthalazinone ether sulfone ketone) (SPPESK) electro-chemical hydrogen pump (EHP) reactor. Due to higher resistance to swelling, SPPESK-based EHP reactor exhibits more excellent reaction rate in elevated temperature (60 degrees C) and higher butanone concentration (2 M) as 270, 260 nmol cm(-2) s(-1), respectively, higher than 240, 200 nmol cm(-2) s(-1) of Nafion-based EHP reactors. Also, the SPPESK-based EHP reactor remains 90% of initial hydrogenation rate after 4 batches, better than that of Nafion-based EHP reactors, which is only 62%. The energy efficiency of EHP separator reaches 40% under H-2/CO2 mixture feed mode, and electricity of about 0.3 kWh is consumed per Nm(3) H-2 product, being superior to energy consumption compared with alternative processes like PSA and electrolysis of water. In addition, SPPESK-based EHP exhibits better hydrogenation stability due to lower CO2 permeation than Nafion. With increasing CO2 content in H-2 feed, hydrogenation rate almost keeps constant at around 210 nmol cm(-2) s(-1) in SPPESK-based EHP reactor while decreases fast to 50 nmol cm(-2) s(-1) in Nafion/PTFE-based EHP reactor. These results show integration of gas separation with hydrogenation reactor is feasible in SPPESK-based EHP reactor. (C) 2016 Elsevier B.V. All rights reserved.

【 授权许可】

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