Title:
【発明の名称】改良された石油-ワツクス分離のための炉過器-遠心分離器系列組合せ
Document Type and Number:
Japanese Patent JPH0692589
Kind Code:
B2
Abstract:
A process for oil-wax separation comprises passing the oil and wax mixture or a slurry thereof with a solvent first to a filtration zone (10) and thereafter to a centrifugation zone (20). The filtration zone produces a wax cake product, which may be reslurried with solvent prior to being centrifuged, and a relatively wax-free filtrate product. The centrifugation zone (20) produces a relatively wax-free liquid which preferably is recycled (24), at least in part, to the filtration zone (10) and a dry wax cake product (26 or 52) having a relatively low solvent and oil content. A preferred centrifugation zone (20) comprises a scroll decanter centrifuge. The disclosed process produces a relatively dry wax cake product and an increased dewaxed oil yield resulting from the reduced amount of oil entrained in the wax cake product. The process also reduces the energy consumption associated with wax recovery by decreasing the amount of solvent entrained in the wax cake.
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Inventors:
David H.
Mem-de-M-Hafeez
Vidanda You-Achia
Mem-de-M-Hafeez
Vidanda You-Achia
Application Number:
JP21794183A
Publication Date:
November 16, 1994
Filing Date:
November 21, 1983
Export Citation:
Assignee:
Exxon Research and Engineering Company
International Classes:
B01D36/02; B01D37/00; B04B1/20; C10G73/04; C10G73/06; C10G73/28; C10G73/36; (IPC1-7): C10G73/28; C10G73/04
Domestic Patent References:
| JP5285205A |
Other References:
【文献】米国特許3006839(US,A)
【文献】米国特許2723941(US,A)
【文献】米国特許2180070(US,A)
【文献】米国特許2723941(US,A)
【文献】米国特許2180070(US,A)
Attorney, Agent or Firm:
Motohiro Kurauchi