Title:
METHOD FOR DEHYDROGENATING ALKANE
Document Type and Number:
WIPO Patent Application WO/2018/135712
Kind Code:
A2
Abstract:
The present invention relates to a method for dehydrogenating alkane, the method comprising: a step for dehydrogenating propane by supplying hydrogen, steam, and a supply gas stream including a hydrocarbon to be dehydrogenated to a dehydrogenation reactor, the dehydrogenation step being repeated for 5 sets or more, the dehydrogenation reactor being provided with a two-stage reaction raw material heater connected in parallel that heats the supply gas stream supplied to each reactor, and the steam being supplied divided among the reactors respectively that are used for the 5 sets or more of reaction steps; and a step for cooling and compressing a product gas stream of the previous step, passing the product gas stream through a cooling box to rapidly cool the product gas stream, and recovering a product by separating and purifying the product gas stream that has passed through the cooling box. According to the present invention, it is possible to increase the amount of propylene produced and reduce the process unit cost by introducing steam to a dehydrogenation reactor, and since the number of reactors is increased to five such that it is possible to reduce the process unit cost and increase the total heat supply amount by supplying reaction heat divided between each stage, the amount of propylene produced can be increased.
Inventors:
JO BU YOUNG (KR)
KIM WON IL (KR)
KIM WON IL (KR)
Application Number:
PCT/KR2017/006867
Publication Date:
July 26, 2018
Filing Date:
June 29, 2017
Export Citation:
Assignee:
HYOSUNG CORP (KR)
International Classes:
B01D53/04; C07C5/333; B01J8/00; B01J38/04; C01B3/50; C07C7/00; C07C7/20; C07C11/02
Foreign References:
| US6472577B1 | 2002-10-29 | |||
| US3572391A | 1971-03-23 | |||
| US4381417A | 1983-04-26 | |||
| US5321192A | 1994-06-14 | |||
| US4191846A | 1980-03-04 | |||
| US20140378725A1 | 2014-12-25 | |||
| US4430517A | 1984-02-07 | |||
| US5689029A | 1997-11-18 | |||
| US9517447B1 | 2016-12-13 |
Other References:
ROBERT A. MEYERS: "Handbook of Petroleum Refining Processes", 26 April 1983, MCGRAW-HILL EDUCATION, article WOLFGANG SPIEKER AND GREGORY J. NEDOHIN: "4.1. UOP OLEFLEX PROCESS FOR LIGHT OLEFIN PRODUCTION", pages: 11pp, XP055736093
See also references of EP 3572391A4
See also references of EP 3572391A4
Attorney, Agent or Firm:
KIM, Hak Je et al. (KR)
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