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Method for processing heavy material by using up-flow reactor system

A technology for reactor systems and heavy raw materials, which is applied in the fields of hydroprocessing, petroleum industry, and hydrocarbon oil treatment, and can solve problems such as complex design and manufacture, uneven fluid distribution, and easy hot spots

Inactive Publication Date: 2012-05-16
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Overcome the complex design and manufacture of reactor internal components in the prior art, and the defects of uneven distribution of fluid in the reactor and easy generation of hot spots

Method used

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  • Method for processing heavy material by using up-flow reactor system
  • Method for processing heavy material by using up-flow reactor system
  • Method for processing heavy material by using up-flow reactor system

Examples

Experimental program
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Effect test

Embodiment 1

[0034] use figure 1 The process flow shown has two upflow fixed-bed reactors connected in series. The mixture of residual oil raw material and hydrogen enters two series-connected upflow fixed-bed reactors with a single catalyst bed through the inlet pipe 101, and the products of removing part of sulfur, nitrogen, carbon residue and metals are drawn out from the pipe 105.

[0035] The catalyst used is an upflow catalyst developed by the Petrochemical Science Research Institute. Catalysts were produced by Catalyst Changling Branch of China Petroleum & Chemical Corporation. The loading situation of the catalyst in each reactor is:

[0036] The catalyst in the a reactor is RG-10A, RUF-1B, RUF-1C from bottom to top; The loading volume of catalyst is 500ml, and the loading volume ratio of catalyst is 10:60:30.

[0037] The catalyst in the b reactor is RUF-1C and RUF-2B from bottom to top; the loading volume of the catalyst is 500ml, and the loading volume ratio of the catalyst i...

Embodiment 2

[0042] according to figure 2 The process flow shown is composed of two serial fixed bed flow reactors a, b and three downflow fixed bed hydroprocessing reactors c, d and e. The mixture of vacuum residue, vacuum gas oil and hydrogen is sent to two series-connected upflow fixed-bed reactors a and b through pipe 101. The mostly metal-depleted effluent enters the top of conventional hydrotreating reactor c via line 105, and then enters reactors d and e for further removal of carbon, sulfur and nitrogen. The hydrotreated product can be used as feedstock for further processes such as hydrocracking or FCC.

[0043] The catalyst used is a catalyst developed by the Petrochemical Science Research Institute. Catalysts were produced by Catalyst Changling Branch of China Petroleum & Chemical Corporation. The loading situation of the catalyst in each reactor is:

[0044] The catalyst in the a reactor is RG-10A, RUF-1B, RUF-1C from bottom to top; The loading volume of catalyst is 500ml,...

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Abstract

The invention discloses a method for processing a heavy material by using an up-flow reactor system. At least two serially connected single-catalyst bed up-flow reactors are arranged; according to the flowing direction of a reaction material flow, the hydrogenation activity of a catalyst in a first reactor bed is lower than that of a catalyst in a second reactor bed; and the bottom of each reactor is provided with fluid distribution equipment for controlling to uniformly distribute fluid flowing through catalyst layers. The invention provides a method for processing heavy oil by using an up-flow reactor system in which fluids in the reactors is uniformly distributed and components in the reactors are easy to design and manufacture. An optimized catalyst grading method is adopted, and the metal removal rate for the heavy material in the up-flow reactor system is over 50 percent.

Description

technical field [0001] The present invention relates to a process for the processing of heavy feedstocks in the presence of hydrogen in an upflow reactor system for the removal of metals, sulfur, nitrogen and carbon residues. Background technique [0002] The heavy oil hydrogenation process is a heavy oil deep processing technology. This process is to carry out hydrodesulfurization, hydrodenitrogenation, hydrodemetallization, residual carbon conversion and hydrocracking reactions on residual oil in the presence of hydrogen and catalysts. The obtained hydrogenated residual oil can be used as feedstock for high-quality catalytic cracking to produce light oil products, so as to achieve the maximum lightening of residual oil and realize a no-residue oil refinery. Using hydrotreated residual oil as FCC feed can reduce the sulfur content of FCC gasoline, and at the same time reduce the emission of SOx and NOx in FCC flue gas. Therefore, the processing scheme of residual oil hydro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G65/04
Inventor 戴立顺邵志才牛传峰刘涛杨清河胡大为
Owner CHINA PETROLEUM & CHEM CORP
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