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Catalytic conversion method for producing high-quality light fuel by using crude oil

A catalytic conversion method and light fuel technology, applied in the field of producing high-octane gasoline and high cetane diesel

Active Publication Date: 2011-06-01
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Catalytic wax oil is further hydrocracked

Method used

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  • Catalytic conversion method for producing high-quality light fuel by using crude oil
  • Catalytic conversion method for producing high-quality light fuel by using crude oil
  • Catalytic conversion method for producing high-quality light fuel by using crude oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] This example illustrates the production of high-quality light fuels through catalytic conversion and hydrocracking reactions using the method provided by the present invention.

[0068] This embodiment is tested according to the flow process of Fig. 1, raw material oil A is directly used as the raw material oil of catalytic conversion, catalytic conversion catalyst is A, is tested on the medium-sized device of riser reactor, and raw material oil A enters reaction zone I. Reaction temperature 465°C, weight hourly space velocity 30h -1 , the weight ratio of catalyst to feedstock oil is 10, and the weight ratio of water vapor to feedstock oil is 0.15 to carry out the cracking reaction; the pressure of the gas collection chamber is 0.2 MPa, and the reaction product oil gas and the catalyst to be born with carbon are separated in the settler , The products are cut according to the distillation range in the separation system, so as to obtain products such as dry gas, liquefie...

Embodiment 2

[0075] This example illustrates the situation of mass production of high-quality diesel oil by catalytic conversion and hydrocracking reaction using the method provided by the present invention.

[0076] This embodiment is identical with the test apparatus of embodiment 1, feedstock oil B is directly used as the refractory feedstock oil of catalytic conversion, and is tested on the medium-sized device by riser reactor, and refractory feedstock oil enters reaction zone I bottom reaction, easy The cracked raw oil enters the upper part of the reaction zone I to react. At the bottom of reaction zone I, the refractory raw material oil is heated at a reaction temperature of 520°C and a weight hourly space velocity of 300h -1 , the weight ratio of catalytic conversion catalyst A to the difficult-to-crack raw oil is 90, and the weight ratio of water vapor to the difficult-to-crack raw oil is 0.20 to carry out the cracking reaction; Weight hourly space velocity 120h -1 , the weight r...

Embodiment 3

[0079] This example illustrates the production of a large amount of high-quality gasoline by catalytic conversion and hydrocracking reaction using the method provided by the present invention.

[0080] The raw material oil A is directly used as the easy-to-crack raw material oil for catalytic cracking, and the test is carried out on a medium-sized device with a riser reactor. The catalytic conversion catalyst is A, and the easy-to-crack raw material oil enters the middle and upper part of the reaction zone I, and the difficult-to-crack raw material oil enters the reaction zone. I bottom. At the bottom of reaction zone I, the refractory raw material oil is heated at a reaction temperature of 580°C and a weight hourly space velocity of 240h -1 , the weight ratio of catalytic cracking catalyst to refractory feed oil is 30, and the weight ratio of water vapor to refractory feed oil is 0.20 to carry out the cracking reaction; Hourly space velocity 90h -1 The cracking reaction is ...

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Abstract

The invention relates to a catalytic conversion method for producing a high-quality light fuel by using crude oil, wherein the crude oil comes into contact with a catalyst rich in mesopore zeolite in a reactor to react. The catalytic conversion method is characterized in that a reaction temperature, a weight hourly space velocity and the weight ratio of the catalyst to the crude oil are sufficient for ensuring that a reaction product containing catalytic wax oil accounting for 12-60 wt% of the crude oil is obtained by reaction, wherein the reaction temperature is 420-600 DEG C, the weight hourly space velocity is 25-100h-1, and the weight ratio of the catalyst to the crude oil is 1-30; and then the catalytic crude oil is hydrogenated for cracking. The invention provides a method combining crude oil catalytic conversion with hydrogenation cracking, and especially, when poor-quality crude oil is converted to high-octane gasoline and high-hexadecane value of diesel oil, the yields of dry gas and coke are greatly reduced so that high-efficiency utilization of petroleum resources is realized.

Description

technical field [0001] The invention relates to a method for producing high-quality light fuel by combining catalytic conversion of crude oil and hydrocracking. More specifically, a process for maximizing the production of high octane gasoline and high cetane diesel through catalytic conversion and hydrocracking. Background technique [0002] Worldwide demand for high-quality diesel is increasing, while demand for fuel oil is decreasing. Although the increase in demand for gasoline and diesel varies from region to region, overall, the growth rate of demand for diesel worldwide will exceed the growth rate of demand for gasoline. Therefore, more catalytic light diesel oil with low cetane number is being used as a blending component of diesel oil. In order to meet the demand for high-quality diesel oil, it is necessary to upgrade the catalytic light diesel oil, or directly produce a large amount of high-quality catalytic light diesel oil through catalytic cracking (FCC). [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G69/04C10G11/05
Inventor 唐津莲许友好龚剑洪程从礼汪燮卿
Owner CHINA PETROLEUM & CHEM CORP
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