Title:
【発明の名称】液体留分の超臨界蒸気抽出を用いる炭化水素液体の水素化転化方法
Document Type and Number:
Japanese Patent JPH08911
Kind Code:
B2
Abstract:
A process for high hydroconversion of heavy hydrocarbon liquid feedstocks such as petroleum residua containing at least about 50 V % material boiling above 975 DEG F. to produce lower boiling hydrocarbon liquid and gas products, wherein heavy RCR materials and metals compounds are removed in-situ from the reactor effluent liquid by solvent vapor extraction using a process-derived solvent vapor at supercritical conditions. In the process, the feedstock is catalytically hydroconverted at 780 DEG -860 DEG F. temperature, and the resulting liquid fraction is contacted with a process-derived solvent vapor fraction having a normal boiling range of 250 DEG -400 DEG F. and heated to supercritical temperature to dissolve and extract substantially all the hydrocarbon liquid fractions, and separate heavy RCR materials and the metals compounds contained therein. The resulting supercritical solvent vapor with dissolved liquid fraction is pressure-reduced and distilled to recover the needed solvent fraction and to provide a hydrocarbon liquid fraction product. The hydrogenation step preferably uses an ebullated catalytic bed. Also, if desired, the supercritical solvent vapor extraction step can be used intermediate two hydroconversion reaction zones connected in series to produce additional desired lower boiling desulfurized hydrocarbon liquid fraction products.
Inventors:
PAS Gangli
Application Number:
JP3045584A
Publication Date:
January 10, 1996
Filing Date:
February 22, 1984
Export Citation:
Assignee:
HIR Inc.
International Classes:
C10G1/10; B01D11/04; C10G47/26; C10G65/12; C10G67/04; (IPC1-7): C10G67/04
Domestic Patent References:
| JP5410539B1 |
Other References:
【文献】米国特許4354922(US,A)
Attorney, Agent or Firm:
Akihide Sugimura (1 outside)
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