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Title:
炭化水素からノルマルパラフィンを分離する方法及び分離された炭化水素の用途
Document Type and Number:
Japanese Patent JP4117560
Kind Code:
B2
Abstract:
There is provided with a process for separating normal paraffins from hydrocarbons of C5-10 using zeolite molecular sieve 5A, which comprises the steps of (a) selective adsorption (b) cocurrent purge (c) countercurrent desorption. The present process employs butane for purge and desorption step to achieve excellent desorption efficiency and recycles butane in liquid phase to reduce the investment cost. The optimum operating conditions for feedstock change and adsorption capacity reduction are determined by NIR system for on-line monitoring and control. The separated normal paraffins can be efficiently applied to raw material for ethylene production and the separated non-normal paraffins can be efficiently applied to raw material for aromatic hydrocarbons production.

Inventors:
Choi, Song
Lee, Sung-Zun
Kang, Shin-Chul
Kim, Sun-won
Gu, Min-Sik
Choi, Ann-Sop
Zhang, Byung-mu
Application Number:
JP2003542306A
Publication Date:
July 16, 2008
Filing Date:
July 26, 2002
Export Citation:
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Assignee:
SK ENERGY CO., LTD.
International Classes:
C10G25/03; G01N21/35; B01D53/04; B01J20/281; C10G25/00; C10G53/04; C10G53/08; C10G53/16; C10G55/04; C10G61/06; C10G73/02; G01N30/00; G01N30/26; G01N30/30; G01N30/32; G01N30/46; G01N30/74; G01N30/88
Domestic Patent References:
JP62502411A
JP5827789A
JP5283302A
JP2212595A
JP6501718A
Foreign References:
US4350583
Attorney, Agent or Firm:
Calyx
Toshio Nakamura
Miyazaki Yoshio
Tsutomu Kato



 
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