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Title:
METHOD AND APPARATUS FOR DESULFURIZATION AND SEPARATION OF CATALYTICALLY CRACKED LIGHT PRODUCT
Document Type and Number:
WIPO Patent Application WO/2021/083314
Kind Code:
A1
Abstract:
A method and apparatus for desulfurization and separation of a catalytically cracked light product. The method comprises the following steps: 1) in an adsorption and desulfurization reaction unit, under a hydrogenation condition, making a catalytically cracked light product be in contact with a desulfurization adsorbent so as to perform desulfurization, and optionally performing gas-liquid separation on a desulfurized product so as to obtain desulfurized rich gas and desulfurized crude gasoline, wherein the catalytically cracked light product is oil gas from the top of a catalytic cracking fractionation tower, or is rich gas and crude gasoline from the catalytic cracking fractionation tower; and 2) separately conveying the desulfurized rich gas and the desulfurized crude gasoline obtained at step 1) to a catalytic cracking absorption and stabilization system for separation so as to obtain desulfurized dry gas, desulfurized liquefied gas, and desulfurized stable gasoline. The method and apparatus are suitable for treating the catalytically cracked light product obtained from the catalytic cracking fractionation tower so as to obtain refined gasoline, and are high in yield and small in octane number loss.

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Inventors:
WANG WENSHOU (CN)
MAO ANGUO (CN)
ZHANG ZHIGANG (CN)
LIU XIANLONG (CN)
XU LI (CN)
LIU YULIANG (CN)
Application Number:
PCT/CN2020/125166
Publication Date:
May 06, 2021
Filing Date:
October 30, 2020
Export Citation:
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Assignee:
CHINA PETROLEUM & CHEM CORP (CN)
SINOPEC RES INST PETROLEUM (CN)
International Classes:
C10G49/22; C10G67/02
Foreign References:
CN109722302A2019-05-07
CN106281442A2017-01-04
CN106701177A2017-05-24
CN102839011A2012-12-26
US7547386B12009-06-16
US5843300A1998-12-01
Other References:
See also references of EP 4053250A4
Attorney, Agent or Firm:
CHINA PATENT AGENT (H.K.) LTD. (CN)
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