Catalytic conversion method for producing high-quality light fuels from crude oil

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

Active Publication Date: 2014-04-30
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 fuels from crude oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] 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.

[0073] This embodiment is tested according to the flow process of accompanying drawing, and catalyzer is MDCO-2, and raw material oil A is directly used as the easily crackable raw material oil of catalytic cracking, is tested on the medium-sized device by riser reactor, and easy crackable raw material oil enters reaction zone In the middle and upper part of I, the difficult-to-crack raw oil enters the bottom of reaction zone I. 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 ...

Embodiment 2

[0079] 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.

[0080] This embodiment is the same as the test device of Example 1, with MDCO-2 as the catalyst, feed oil B is directly used as the refractory feed oil of catalytic conversion, and the test is carried out on a medium-sized device with a riser reactor, and the refractory feed oil enters The bottom of the reaction zone I reacts, and the easy-to-crack 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. Cracking reaction is carried out under the condition that the weight ratio of catalytic conversion catalyst to difficult-to-crack raw oil is 90, and the weight ratio of water vapor to difficult-to-crack raw oil is 0.20. ...

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Abstract

The invention discloses a catalytic conversion method for producing high-quality light fuels from crude oil. The crude oil contacts and reacts with a catalyst which is rich in mesoporous zeolite and in coarse particle size distribution. The catalytic conversion method is characterized in that a reaction product containing catalytic wax oil which accounts for 12-60 wt% of the weight of raw material is obtained by the reaction temperature, weight hourly space velocity and the weight ratio of raw oil to catalyst, wherein the reaction temperature is 420-600 DEG C, the weight hourly space velocity is 25-100 hours<-1>, the weight ratio of catalyst to raw oil is 1 to 30, and the wax is catalyzed before hydrocracks. In the invention, crude oil catalytic converter and hydrocracking methods are provided, which, in particular, reduces dry gas and coke yield significantly while converting the poor quality of crude oil into high octane gasoline and high-cetane diesel fuel so as to achieve efficient use of oil resources, and reduce the broken tendency of the catalyst and the catalyst consumption.

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 Patents(China)
IPC IPC(8): C10G69/04
Inventor 唐津莲许友好程从礼龚剑洪汪燮卿
Owner CHINA PETROLEUM & CHEM CORP
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