Improved hydrotreatment and catalytic cracking combination method for hydrocarbon oil

A catalytic cracking and hydrotreating technology, applied in hydrotreating process, treating hydrocarbon oil, petroleum industry, etc., can solve the problems of poor selectivity of gasoline or diesel with adjustable product distribution, and achieve higher yield, improved efficiency, The effect of increasing the depth of cracking transformation

Active Publication Date: 2009-09-23
CHINA PETROLEUM & CHEM CORP +1
View PDF12 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide an improved combined method of hydrocarbon oil hydrotreating and catalytic crac

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Improved hydrotreatment and catalytic cracking combination method for hydrocarbon oil
  • Improved hydrotreatment and catalytic cracking combination method for hydrocarbon oil
  • Improved hydrotreatment and catalytic cracking combination method for hydrocarbon oil

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0052] Example 1

[0053] This example illustrates the following figure 1 The effect of the process shown.

[0054] Among them, the feedstock oil entering the hydrotreating reactor is feedstock oil A, the hydrotreating reaction conditions and the product distribution of the hydrotreating product oil are listed in Table 2, where the generated hydrogenation tail oil is named hydrogenation tail oil C, Feed E is a commonly used feed for catalytic cracking. Hydrogenation tail oil C and feed E account for 20% by weight and 80% by weight of the total feed, respectively. Feed E is distilled to obtain light oil fraction H (distillation range of 350-500°C, accounting for 44% by weight of feed E) and heavy oil fraction G (distillation range higher than 500°C, accounting for feed E 56% by weight), various feed properties are listed in Table 3-1. The heavy distillate oil G and the hydrogenated tail oil C are introduced into the catalytic cracking reaction zone I together, and the light distil...

Example Embodiment

[0057] Example 2

[0058] This example illustrates the following figure 1 The effect of the process shown.

[0059] Among them, the feedstock oil fed into the hydrotreating reactor is feedstock oil B. The hydrotreating reaction conditions and the product distribution of the hydrotreating product oil are listed in Table 2. The generated hydrogenation tail oil is named hydrogenation tail oil D. Feed E is a commonly used catalytic cracking feed (same as the example). Hydrogenation tail oil D and feed E account for 70% by weight and 30% by weight of the total feed, respectively. Feed E is distilled to obtain light oil fraction H (distillation range of 350-500°C, accounting for 44% by weight of feed E) and heavy oil fraction G (distillation range higher than 500°C, accounting for feed E 56% by weight), various feed properties are listed in Table 3-1. The heavy distillate oil G and the hydrogenated tail oil D are introduced into the catalytic cracking reaction zone I together, and the ...

Example Embodiment

[0062] Example 3

[0063] This example illustrates the following figure 2 The effect of the process shown.

[0064] Among them, the feedstock oil entering the hydrotreating reactor is feedstock oil A, the hydrotreating reaction conditions and the product distribution of the hydrotreating product oil are listed in Table 2, where the generated hydrogenation tail oil is named hydrogenation tail oil C, Feed E is a commonly used catalytic cracking feed (same as Example 1). Hydrogenation tail oil C and feed E account for 20% by weight and 80% by weight of the total feed, respectively. Feed E is distilled to obtain light oil fraction H (distillation range of 350-500°C, accounting for 44% by weight of feed E) and heavy oil fraction G (distillation range higher than 500°C, accounting for feed E 56% by weight), various feed properties are listed in Table 3-2. The heavy distillate oil G is separately introduced into the catalytic cracking reaction zone I, the light distillate oil H and the h...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses an improved hydrotreatment and catalytic cracking combination method for hydrocarbon oil, which comprises the following steps that: under reaction conditions of the presence of hydrogen and the hydrotreatment, the contact reaction of residual oil, catalytic cracking cycle oil, optional distillate oil and a hydrotreating catalyst is performed, and gas, hydrogenerated naphtha, hydrogenerated diesel oil and hydrogenerated tail oil are obtained after a reaction product is separated; under catalytic cracking reaction conditions, the contact reaction of the optional conventional catalytic cracking raw oil, the hydrogenerated tail oil and a catalytic cracking catalyst is performed, and dry gas, liquefied gas, catalytic cracking gasoline, catalytic cracking diesel oil and catalytic cracking cycle oil are obtained after a reaction product is separated; and the conventional catalytic cracking raw oil is light or heavy distillate oil, and the contact reaction with the catalytic cracking catalyst is that the heavy raw oil and light raw oil are optionally and orderly performed along with the hydrogenerated tail oil in a reactor comprising at least two reaction regions (I and II) along the flowing direction of reaction materials respectively. The method is suitable for hydrocarbon oil conversion to produce more gasoline and diesel oil.

Description

technical field [0001] The invention relates to a method for converting hydrocarbon oil through the combined process of hydrogenation treatment process and catalytic cracking process. Background technique [0002] At present, the world is facing the trend of crude oil becoming heavier and worse, while people's demand for heavy fuel oil is gradually decreasing, while the demand for light oil is greatly increasing. Therefore, oil refining companies are pursuing the maximum conversion of residual oil into products such as motor gasoline, diesel and liquefied petroleum gas. It is an effective method to achieve the above-mentioned purpose by hydrogenation treatment to significantly reduce the content of sulfur, nitrogen, metal and other impurities and carbon residue in inferior heavy oil or residual oil, and meet the raw material requirements for normal processing of catalytic cracking units. [0003] US4,713,221 discloses that on the basis of the combination of conventional res...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C10G69/04
Inventor 高永灿谢朝钢牛传峰刘涛张久顺戴立顺毛安国聂红李大东崔琰马建国
Owner CHINA PETROLEUM & CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap