QQ客服 官方微博 反馈留言

	Thermodynamic evaluation of the novel distillation column of the air separation unit with integration of liquefied natural gas (lng) regasification
	Chen, Shiqing1,2,3; Dong, Xuezhi1,2; Xu, Jian1,2; Zhang, Hualiang1,2; Gao, Qing1,2; Tan, Chunqing1,2
刊名	Energy
	2019-03-15
卷号	171页码:341-359
关键词	Lng Air separation unit Vapor recompression column Internal thermally coupled column Thermodynamic analysis
ISSN号	0360-5442
DOI	10.1016/j.energy.2018.12.220
通讯作者	Dong, xuezhi(dongxuezhi@iet.cn)
英文摘要	A cryogenic air separation unit (asu) with the implementation of vapor recompression column (vrc) and lng cryogenic energy is proposed and investigated. to this end, three types of cryogenic rectification column for air separation are first illustrated, and their thermodynamic characteristics are evaluated by the first and second thermodynamic laws. the results show the purity and recovery ratio of product are determined by the total amount of heat duty and the scheme of heat distribution. compared with the conventional double rectification column and internally heat-integrated distillation column, the vrc is the most suitable column for the asu with use of lng cryogenic energy as its lower demand of shaft work and minimum energy of separation. based on the above analysis, adopting the cryogenic energy from product to cool the reflux and feed air is beneficial for producing vapor product in the proposed process. the operating pressure of asu could be reduced by about 24%, and the cryogenic energy of lng can be used efficiently and sufficiently with respect to the supercritical thermophysical property. by adding the air-aid refrigeration process, the proposed process also has the ability to produce liquid oxygen. under the same oxygen purity and recovery ratio, the optimal results show the power consumption is about 6.9% and 11.1% lower than that in the previous studies in producing vapor and liquid product respectively, and the minimum energy of separation is improved by use of lng cryogenic energy. (c) 2019 elsevier ltd. all rights reserved.
WOS关键词	EXERGY ANALYSIS ; DESIGN ; OPTIMIZATION ; SIMULATION
WOS研究方向	Thermodynamics ; Energy & Fuels
WOS类目	Thermodynamics ; Energy & Fuels
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000461534400026
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2373504
专题	工程热物理研究所
通讯作者	Dong, Xuezhi
作者单位	1.Chinese Acad Sci, Inst Engn Thermophys, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Ordos Qidi Incubator Serv Ctr, Ordos 017010, Peoples R China
推荐引用方式 GB/T 7714	Chen, Shiqing,Dong, Xuezhi,Xu, Jian,et al. Thermodynamic evaluation of the novel distillation column of the air separation unit with integration of liquefied natural gas (lng) regasification[J]. Energy,2019,171:341-359.
APA	Chen, Shiqing,Dong, Xuezhi,Xu, Jian,Zhang, Hualiang,Gao, Qing,&Tan, Chunqing.(2019).Thermodynamic evaluation of the novel distillation column of the air separation unit with integration of liquefied natural gas (lng) regasification.Energy,171,341-359.
MLA	Chen, Shiqing,et al."Thermodynamic evaluation of the novel distillation column of the air separation unit with integration of liquefied natural gas (lng) regasification".Energy 171(2019):341-359.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。