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Method for promoting light oil yield of atmospheric and vacuum distillation of petroleum oil

A technology for atmospheric and vacuum distillation and petroleum, which is applied in hydrocarbon distillation, petroleum industry and other directions, can solve the problems of large addition amount, etc., and achieve the effect of improving the yield of light oil and achieving significant and substantial effects.

Inactive Publication Date: 2007-11-14
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Chinese patent CN1030250A uses aromatic hydrocarbon-containing petroleum catalytic cracking back refining oil or catalytic oil slurry as an additive, which is added in a weight ratio of 0.5-10%, which can increase the yield of vacuum distillate, but its addition is relatively large, and it is catalytic cracking Refined oil and catalytic slurry, which are valuable petrochemical feedstocks
In addition, the invention can only be used in refineries with catalytic cracking units, and is limited to the vacuum distillation range

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Daqing crude oil was used to carry out on-site normal pressure boiling point distillation test. The components and weight percentages of the additives were: turpentine 60%, ethyl propyl ketone 40%. The addition amount of the additive is 0.003% of the crude oil weight, and the obtained test results are as described in Table 1.

[0014] Table 1

[0015] temperature range

[0016] As can be seen from the data in Table 1, the yield of light oil at atmospheric pressure is increased by 1.53%.

Embodiment 2

[0018] Use Middle East Nile crude oil: crude oil proportioning is (Wenchang: Banchenus)=85: 15, carry out atmospheric pressure real boiling point distillation test, distillation apparatus is the semi-automatic true boiling point distillation apparatus that German FISCHER company manufactures, and this distillation apparatus meets ASTM2892 With ASTM5236 standard specification. The components and weight percentage of the additive are: 50% of rosin, 50% of acetic acid ethylene glycol ethyl ether. The addition amount of the additive is 0.004% of the crude oil weight, and the obtained test results are shown in Table 2.

[0019] Table 2

[0020] temperature range

[0021] As can be seen from the data in Table 2, the light oil yield of the atmospheric tower is increased by 1.52w%; the light oil yield of the vacuum tower is increased by 0.86w%; the total light oil yield is increased by 2.38w%.

Embodiment 3

[0023] Crude oil and test equipment are the same as example 2. The components and weight percentage of the additive are: turpentine: 70%, ethylene glycol diethyl ether 30%. The addition amount of the additive is 0.003% of the crude oil weight, and the obtained test results are shown in Table 3.

[0024] temperature range

[0025] As can be seen from the data in Table 3, the light oil yield of the atmospheric tower is increased by 1.10w%, the light oil yield of the vacuum tower is increased by 0.76w%, and the total light oil yield increases by 1.86w%.

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Abstract

The invention relates the method for improving atmospheric and vacuum distillation light oil productivity. The method comprises the following step: adding the 0.001-0.1wt% addition agent with colophony into crude oil in atmospheric and vacuum distillation tower. The addition agent comprises 50-80% colophony and 50-20% organic solvent. The pH is 7.0-7.5. The organic solvent comprises ethanol or cellosolve or ethyl propyl acetone or acetate cellosolve. The method can be used in oil-extraction plant, and the light oil productivity is improved by 1.5-2.3wt%.

Description

technical field [0001] The invention relates to a method for increasing the yield of light oil in petroleum atmospheric and vacuum distillation, which is an improved technology in petroleum refining and can effectively increase the yield of lighter components in the petroleum atmospheric and vacuum distillation process. It belongs to the technical field of fuel and energy. Background technique [0002] Oil will be exhausted in the first half of this century, so how to increase its distillate yield is becoming more and more important and urgent. Fuel oil processing is firstly to distill the crude oil in the regular vacuum tower to separate the light distillate gasoline, kerosene and diesel oil in the crude oil, and then put the heavy distillate and residual oil at the bottom of the tower into catalytic cracking and coking devices for secondary processing. Secondary processing converts it into a light oil. In short, it is necessary to do everything possible to take out as mu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G7/00
Inventor 王寿泰朱正明
Owner SHANGHAI JIAO TONG UNIV
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