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Method for decalcifying hydrocarbon oil raw material using quaternary ammonium salt

A technology of quaternary ammonium salt and hydrocarbon oil, which is applied in the direction of refined hydrocarbon oil and petroleum industry, etc. It can solve the problems of large power consumption in electric desalination process and low decalcification rate of hydrocarbon oil, so as to save power consumption and shorten the time of electric desalination , Improve the effect of decalcification efficiency

Inactive Publication Date: 2005-05-04
CHINA PETROLEUM & CHEM CORP +1
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is that the electrical desalination process in the prior art consumes a lot of electric energy and the actual decalcification rate of hydrocarbon oil is low. It provides a new method for decalcifying hydrocarbon oil raw materials using quaternary ammonium salts

Method used

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  • Method for decalcifying hydrocarbon oil raw material using quaternary ammonium salt
  • Method for decalcifying hydrocarbon oil raw material using quaternary ammonium salt

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Embodiment 1～6

[0023] This group of embodiment adopts actual crude oil sample, example Liaohe high acid value heavy crude oil, specific gravity 0.92 g / cm 3 , colloid 13%, Ca content 46.3ppm; Dagang crude oil (calcium content 104ppm); Shengli Oilfield (calcium content 33.67ppm); Luning pipeline oil (calcium content 26.42ppm), Iranian dirty oil (calcium content 69.7ppm), Iranian residual oil (calcium content 241.1ppm).

[0024] Mix deionized water, 50ppm BP2040 demulsifier (produced by Henan Luoyang Mengjin Petrochemical Anticorrosion Material Factory), different concentrations of precipitants and different concentrations of quaternary ammonium salts, with 70 grams of crude oil with different calcium contents, at 60 ° C, 1000 V / Under the centimeter electric field, act for 6 minutes, then separate the crude oil and water, and measure the calcium content in the crude oil after removal, and the results are listed in Table 1. Wherein in embodiment 1, quaternary ammonium salt is C 16 h 33 NH 3 ...

Embodiment 7

[0033] By each step and condition of embodiment 1, just do not add demulsifier, its result decalcification rate is 83.9%.

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Abstract

This invention involves the method of adopting quaternary ammonium salt to decalcify hydrocarbon oil material and mainly solves such problems existing in previous technology as too much consumption of electricity in electric desalting technology and actual low decalcification rate. By technological scheme of uniform mixing at least hydrocarbon oil, precipitant, quaternary ammonium salt, water and optional demulsifier to separate oil from water and get decalcified hydrocarbon oil material from aqueous solution, this invention can solve this problem well and can be applied in crude decalcification industry.

Description

technical field [0001] The invention relates to a method for decalcifying hydrocarbon oil raw materials by using quaternary ammonium salts. Background technique [0002] In recent years, with the development of oil extraction technology, a large amount of heavy crude oil has been extracted. The metal content in these crude oils, especially the content of some alkaline earth metals such as Ca has increased greatly, and their influence on crude oil processing has been paid more and more attention by people. Studies have shown that the increase of Ca content in raw oil will significantly reduce the molecular sieve and matrix area of ​​the catalyst, which will directly affect the activity of the catalyst. In recent years, some refineries refining high-Ca crude oil have experienced poisoning and deactivation of catalytic cracking catalysts, which not only greatly reduces the yield of light oil, but also affects the quality of downstream residual oil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G29/20
Inventor 乔建江张磊张卫东陈永福张惠明
Owner CHINA PETROLEUM & CHEM CORP
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