De-ester Yarrowia liplytica CGMCC No.0692 and its use in petroleum refinement

A yeast strain and petroleum technology, which is applied in the petroleum industry, refined hydrocarbon oil, fungi, etc., can solve the problems of dewaxing, poor demulsification effect, long production time per unit oil product, low production efficiency, etc., to achieve Easier demulsification, shorter dewaxing time, and lower unit energy consumption
CN1510124AInactive Publication Date: 2004-07-07PETROCHINA CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
PETROCHINA CO LTD
Publication Date
2004-07-07
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

A Yarrowia lipolytica (GMCC No.0692) and its application in refining petroleum are disclosed. Said application process includes such steps as slant culturing at 25-30 deg.C, shake culturing, fermenting respectively and sequentially in stage-one and stage-three seeding tanks for 10-18 hr, mixing with raw oil, water and culture medium, fermenting in production tank for 30-100 hr, heating and emulsifying. Its advantages are high activity, dewaxing efficiency and productivity, easy demulsifying, and high quality of oil product.
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Description

technical field

[0001] The invention relates to the technique of refining petroleum by using microbial fermentation, and is a strain of Yarrowia esterolytica and its application method in petroleum refining. Background technique

[0002] In 1906, the technology of microbial oil refining was reported, mainly for the microbial oxidation of petroleum gas and methane, and the oxidation mechanism of low-level petroleum hydrocarbons and other basic researches were carried out. By 1963, France reported the oxidation method of petroleum hydrocarbons, and then other countries successively carried out petroleum fermentation research and obtained industrialization results. At present, low-point lubricating oil products and base oil products can be produced by using microbial methods. Since microbial fermentation is generally carried out at normal temperature and pressure, the high temperature and high pressure conditions required for the production of petrochemical products by conventi...

Claims

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