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Catalyst conversion method for producing high-octane gasoline by using crude oil

A high-octane gasoline, catalytic conversion method technology, applied in catalytic cracking, cracking, petroleum industry and other directions, can solve the problems of underutilization of gasoline latent content, poor gasoline properties, affecting gasoline octane number, etc.

Active Publication Date: 2011-06-29
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method has many disadvantages such as poor gasoline properties and high energy consumption.
[0004] In addition, the octane number of the heavy fraction of catalytic cracked gasoline is low, which affects the octane number of gasoline; the quality of catalytic cracked diesel oil is poor, but the catalytic cracked diesel oil contains more single-ring aromatics. If the single-ring aromatics in diesel oil are converted As a gasoline component, it is conducive to the increase of gasoline yield and at the same time can improve the octane number of gasoline
Therefore, the existing technology does not fully utilize the gasoline octane number and the gasoline potential content in diesel oil, and there is room for improvement in gasoline yield and quality

Method used

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  • Catalyst conversion method for producing high-octane gasoline by using crude oil
  • Catalyst conversion method for producing high-octane gasoline by using crude oil
  • Catalyst conversion method for producing high-octane gasoline by using crude oil

Examples

Experimental program
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Effect test

Embodiment 1

[0084] This embodiment follows the attached image 3 MGCO-2 was used as the catalyst, and the feedstock oil A was directly used as the easily cracked feedstock oil for catalytic cracking. The test was carried out on the medium-sized device from the riser reactor. The easily cracked feedstock oil entered the middle and upper part of the reaction zone I. The cracked feedstock oil enters the bottom of the reaction zone I. At the bottom of reaction zone I, the refractory feedstock oil is at a reaction temperature of 600℃ and a weight hourly space velocity of 240h -1 , The weight ratio of catalytic cracking catalyst to difficult-to-crack feedstock oil is 30, and the weight ratio of steam to difficult-to-crack feedstock oil is 0.20. Time and space speed 90h -1 , The weight ratio of the catalytic cracking catalyst to the easily cracked feed oil is 10, and the weight ratio of steam to the easily cracked feed oil is 0.15 for the cracking reaction. In the reaction zone II, the reactant f...

Embodiment 2

[0090] This embodiment follows the attached Figure 4 MGCO-2 was used as the catalyst, and the feed oil B was directly used as the refractory feed oil for catalytic cracking. The test was carried out on a medium-sized device from the riser reactor. The refractory feed oil enters the bottom of the reaction zone I to react. The cracked feedstock oil enters the middle and upper part of reaction zone I for reaction. At the bottom of the reaction zone I, the refractory feedstock oil has a reaction temperature of 580℃ and a weight hourly space velocity of 200h -1 , The weight ratio of the catalytic cracking catalyst to the refractory feed oil is 60, and the weight ratio of steam to the refractory feed oil is 0.20. The cracking reaction is carried out; in the upper middle and upper part of the reaction zone I, the easily cracked feed oil is at a reaction temperature of 550℃ and heavy Time and space speed 120h -1 , The weight ratio of catalytic cracking catalyst to easily cracked feed ...

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Abstract

The invention provides a catalytic conversion method for producing high-octane gasoline by using crude oil, which comprises: contacting pretreated crude oil serving as raw material oil with a catalyst which contains macroporous zeolite and is distributed according to a coarse particle size in a catalytic conversion reactor to perform a reaction according to reaction temperature, oil gas dwell time and catalyst to raw material oil weight ratio, which are proper enough to enable the reaction to obtain a reaction product containing catalytic wax oil which accounts for 15 to 60 percent of the weight of the raw material oil, wherein the weight hourly space velocity is 25 to 100h<-1>, the reaction temperature is 450 to 600 DEG C, and he weight ratio of the catalyst to the raw material oil is 1 to 30. In the method, while low-quality crude oil is converted into high-octane gasoline, the dry gas and coke yields are reduced considerably, the high-efficient utilization of oil resources is realized, and the higher particle uniformity of the catalyst makes the local temperature distribution in a regeneration process more uniform and the breakage orientation of the catalyst lowered correspondingly.

Description

Technical field [0001] The invention relates to a method for catalytic conversion of crude oil, in particular to a method for converting heavy crude oil into high-octane gasoline while greatly reducing the yield of dry gas and coke, thereby realizing efficient utilization of petroleum resources. Background technique [0002] With the development of the economy, the number of gasoline vehicles in the world has increased year by year, so the demand for high-quality gasoline is increasing. Catalytic cracking (FCC) gasoline has good anti-knock performance and is one of the main sources of motor gasoline. [0003] The production of catalytically cracked gasoline generally uses straight-run vacuum distillate (VGO) as raw material and blends some residual oils such as atmospheric residual oil (AR) and vacuum residual oil (VR). Heavy raw materials such as residual oil contain high levels of heavy metals such as carbon residue, sulfur, nitrogen, nickel, and vanadium. In order to improve t...

Claims

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Application Information

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IPC IPC(8): C10G69/04C10G55/06C10G11/05C10G11/20
Inventor 唐津莲许友好崔守业汪燮卿
Owner CHINA PETROLEUM & CHEM CORP
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