Method and apparatus for processing coked waxy oil

A technology for coking wax oil and catalytic cracking device, which is applied in cracking, petroleum industry, catalytic cracking and other directions, can solve problems such as influence, and achieve the effects of increasing the amount of mixing, solving processing difficulties, and improving liquid yield

Inactive Publication Date: 2008-07-23
CHINA UNIV OF PETROLEUM (BEIJING)
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  • Abstract
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Problems solved by technology

[0015] The purpose of the present invention is to solve the problem of the influence of aromatics and nitrogen present in the coker gas oil on the catalytic cracking process, and make full use of the existing catalytic cracking unit to effectively process the coker gas oil

Method used

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  • Method and apparatus for processing coked waxy oil
  • Method and apparatus for processing coked waxy oil
  • Method and apparatus for processing coked waxy oil

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Embodiment 4

[0046] The technological process of embodiment 4 is that the conventional feedstock oil 58 with a preheating temperature of 100 to 300 ° C, preferably 150 to 250 ° C, enters the reaction zone 56 from the bottom of the reaction zone 56 through feeding nozzles symmetrically and evenly distributed in the circumferential direction, and comes from the regenerator. 64 The temperature raised by the pre-lifting steam 67 is 600-750°C, preferably 650-700°C, and the reaction temperature of the regenerant 65 is 460-550°C, preferably 480-510°C, and the ratio of agent to oil is 4-12, preferably 6- 9. The catalyst activity is 50-70, preferably 58-65, the reaction time is 2.0-3.5s, preferably 2.5-3.0s, and the reaction pressure is 0.1-0.4MPa for contact, gasification, mixing and reaction, oil, gas, water vapor It enters the upper reaction zone 53 of the riser reactor 51 together with the catalyst. Two regenerant inclined pipes 69 and 76 are arranged at the bottom of the regenerator 64. The re...

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Abstract

The invention discloses coker gatch processing method. It divides the under part of the catalytic cracking riser reactor into two paralleled independent reaction zone in which coker gatch and conventional raw oil are reacted. The reacted matters are meted in the upper part and entered sedimentation stripping system together. The invention also discloses the device that it set the first and second tubes in the under part reaction zone which are upright and paralleled. It can improve the doping quantity of the coker gatch and the quality of the gasoline and diesel oil, and increase liquid yield.

Description

technical field [0001] The invention relates to a method and a device for processing coking wax oil, in particular to a catalytic cracking processing technology and device for delayed coking middle distillate coking wax oil. Background technique [0002] Delayed coking is one of the important secondary processing processes of petroleum, which has strong adaptability to inferior raw materials. As crude oil becomes heavier and higher, the proportion of low-quality imported high-sulfur crude oil continues to increase, and the coking process has received greater attention. Domestic refineries have increased the capacity expansion and transformation of coking units. At present, the processing capacity of domestic coking units has reached about 40 million tons. [0003] Generally speaking, one of the difficulties restricting the development of coking process is the reasonable processing and utilization of coking wax oil, which is the main problem facing the delayed coking process...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G11/02
Inventor 高金森徐春明蓝兴英孟祥海曹斌
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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