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Catalytic thermal conversion process

A thermal conversion and catalyst technology, applied in the petroleum industry, refining hydrocarbon oil, etc., can solve the problems of easy coking, thermal conversion severity and low light oil yield, so as to suppress coking, increase severity and light oil yield high effect

Active Publication Date: 2007-12-26
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The main problems in the above prior art are easy coking, low severity of thermal conversion and low yield of light oil

Method used

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  • Catalytic thermal conversion process

Examples

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Effect test

Embodiment 1

[0047] Crude oil that has not been desalted and dehydrated is subjected to catalytic thermal conversion. The catalyst is AgNO 3 , wherein the content of silver ions is 10000ppm to the content of raw materials respectively. The reaction conditions are: the operating temperature is 410° C., the operating pressure is 1.0 MPa (gauge pressure), and the reaction residence time is 150 minutes. The yield of liquid is 98.5%, among which the yield of <500°C distillate is 70%. No coke is formed.

Embodiment 2

[0049] Crude oil that has not been desalted and dehydrated is subjected to catalytic thermal conversion. The catalyst is CuSO 4 ·5H 2 O, CoCl 2 ·6H 2 O, wherein the content of copper ions and cobalt ions is 5000ppm and 250ppm respectively to the content of raw materials. The reaction conditions are as follows: the operating temperature is 450° C., the operating pressure is 2.0 MPa (gauge pressure), and the reaction residence time is 200 minutes. The liquid yield is 97.5%, and the <500°C distillate yield is 75%. No coke is formed.

Embodiment 3

[0051] Crude oil that has not been desalted and dehydrated is subjected to catalytic thermal conversion. The catalyst is Ag(CH 3 COO), NiCl 2 ·6H 2 O and NaOH, wherein the contents of silver ions, nickel ions and sodium ions to the raw materials are 200ppm, 4000ppm and 4000ppm respectively. The reaction conditions are: the operating temperature is 480° C., the operating pressure is 0.2 MPa (gauge pressure), and the reaction residence time is 30 minutes. The liquid yield is 97.2%, and the <500°C distillate yield is 80%. No coke is formed.

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Abstract

The catalytic heat converting method is to mix material with catalyst containing IB metal ion and to react at temperature 260-520 deg.c and pressure from normal pressure to 5.0 MPa for 1-300 min, with the reaction product being separated to obtain gas and liquid products. The method suppresses coking and has raised heat converting severity and high light oil yield.

Description

technical field [0001] The invention relates to a catalytic thermal conversion method of hydrocarbon oil under the condition of no hydrogen presence or no hydrogen supply. Background technique [0002] The growing demand for high-quality transportation fuels has fueled interest in the conversion of heavier fractions of crude oil to lighter fractions. At present, thermal processing is still one of the important means of heavy oil processing. [0003] In the oil refining industry, thermal processing refers to a type of process that converts heavy raw oil into gas, light oil, fuel oil or coke solely by the action of heat. Although the liquid products of the thermal processing process require hydrogenation and other refining processes, the thermal processing process has the advantages of simple process technology, simple operation, large device flexibility, low construction cost, and low energy consumption. Under the trend of heavier crude oil and increased production of heavy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G29/00
Inventor 宋清虎申海平
Owner CHINA PETROLEUM & CHEM CORP
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