气候变化领域集成服务门户(CCPortal): A novel low-thermal-budget approach for the co-production of ethylene and hydrogen via the electrochemical non-oxidative deprotonation of ethane

CCPortal

DOI	10.1039/c8ee00645h
	A novel low-thermal-budget approach for the co-production of ethylene and hydrogen via the electrochemical non-oxidative deprotonation of ethane
	Ding D.; Zhang Y.; Wu W.; Chen D.; Liu M.; He T.
发表日期	2018
ISSN	17545692
起始页码	1710
结束页码	1716
卷号	11 期号:7
英文摘要	The oversupply of ethane, a major component of natural gas liquids, has stimulated the wide applications of ethylene since the shale gas revolution. However, ethylene production is energy-intensive and represents the most energy-consuming single process in the chemical industry. In this communication, we report, for the first time, a novel low-thermal-budget process for the co-production of ethylene and pure hydrogen using a proton-conducting electrochemical deprotonation cell. At a constant current density of 1 A cm-2, corresponding to a hydrogen production rate of 0.448 mol cm-2 per day, and 400 °C, a close to 100% ethylene selectivity was achieved under an electrochemical overpotential of 140 mV. Compared to an industrial ethane steam cracker, the electrochemical deprotonation process can achieve a 65% saving in process energy and reduce the carbon footprint by as much as 72% or even more if renewable electricity and heat are used. If the heating value of produced hydrogen is taken into account, the electrochemical deprotonation process actually has a net gain in processing energy. The electrochemical deprotonation process at reduced temperatures in the present study provides a disruptive approach for petrochemical manufacturing, shifting the paradigm from thermal chemical practice to a clean energy regime. © 2018 The Royal Society of Chemistry.
英文关键词	Budget control; Carbon footprint; Chemical industry; Deprotonation; Ethane; Ethylene; Shale; Steam cracking; Chemical practices; Constant current density; Electrochemical deprotonation; Ethylene production; Hydrogen production rate; Low thermal budget; Natural gas liquids; Renewable electricity; Hydrogen production; carbon footprint; chemical industry; electricity; electrochemical method; ethylene; hydrogen; natural gas; petrochemical industry; temperature effect
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/190196
作者单位	Energy and Environment Science and Technology, Idaho National Laboratory, Idaho, Falls, ID 83415, United States; School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332, United States
推荐引用方式 GB/T 7714	Ding D.,Zhang Y.,Wu W.,et al. A novel low-thermal-budget approach for the co-production of ethylene and hydrogen via the electrochemical non-oxidative deprotonation of ethane[J],2018,11(7).
APA	Ding D.,Zhang Y.,Wu W.,Chen D.,Liu M.,&He T..(2018).A novel low-thermal-budget approach for the co-production of ethylene and hydrogen via the electrochemical non-oxidative deprotonation of ethane.Energy & Environmental Science,11(7).
MLA	Ding D.,et al."A novel low-thermal-budget approach for the co-production of ethylene and hydrogen via the electrochemical non-oxidative deprotonation of ethane".Energy & Environmental Science 11.7(2018).