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Heavy oil suspended bed hydrogenation method under near clinical water condition

A near-critical water and heavy oil technology, applied in the field of heavy oil suspended bed hydrogenation, can solve the problems of easy coke formation, poor properties, serious metal deposition, etc., and achieve the effects of preventing excessive local temperature, inhibiting reaction coking, mass transfer and heat transfer. Good results

Inactive Publication Date: 2010-06-16
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the suspended bed hydrogenation technology treats residual oil with extremely poor properties, coke is easily generated during the reaction process, and metal deposition is serious

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A common slag A is used as the reaction raw material, and its specific properties are shown in attached table 1. Add 90.00g of raw oil and 4.50g of deionized water into the autoclave with a volume of 500ml. The catalyst is an ultrafine powder type Mo oxide catalyst, and the addition is 200ppm in terms of molybdenum. g. At room temperature, first fully replace the air in the kettle with hydrogen, and then pressurize to 5.0MPa. The vulcanization temperature is 320-340°C, the vulcanization time is 30-60min, the reaction temperature is 415-420°C, and when the reaction temperature is reached, the reaction time lasts for 60min. After the reaction, when the temperature dropped to room temperature, the gas was collected with an air bag for analysis, and the solid residue and liquid product were separated and weighed, and the conversion rate and coke formation rate of the residual oil were calculated. The results are listed in Table 2.

Embodiment 2

[0034] A common slag A is used as the reaction raw material, and its specific properties are shown in attached table 1. Add 90.00g of raw oil and 9.0g of deionized water into the autoclave with a volume of 500ml. The catalyst is a supported Mo-Fe double metal oxide catalyst based on the spent FCC catalyst. The amount added is 150ppm in terms of metal. For sublimation sulfur powder, the amount added is 0.05g. At room temperature, first fully replace the air in the kettle with hydrogen, and then pressurize to 4.0MPa. The vulcanization temperature is 320-340°C, the vulcanization time is 30-60min, the reaction temperature is 415-420°C, and when the reaction temperature is reached, the reaction time lasts for 60min. After the reaction, when the temperature dropped to room temperature, the gas was collected with an air bag for analysis, and the solid residue and liquid product were separated and weighed, and the conversion rate and coke formation rate of the residual oil were calcu...

Embodiment 3

[0036] A common slag A is used as the reaction raw material, and its specific properties are shown in attached table 1. Add 90.00g of raw oil and 13.50g of deionized water into the autoclave with a volume of 500ml. The catalyst is a Mo-Fe composite metal oxide ultrafine powder catalyst. The amount of addition is 200ppm in terms of metal. The amount added is 0.05g. At room temperature, first fully replace the air in the kettle with hydrogen, and then pressurize to 4.0MPa. The vulcanization temperature is 320-340°C, the vulcanization time is 30-60min, the reaction temperature is 405-410°C, and when the reaction temperature is reached, the reaction time lasts for 40min. After the reaction, when the temperature dropped to room temperature, the gas was collected with an air bag for analysis, and the solid residue and liquid product were separated and weighed, and the conversion rate and coke formation rate of the residual oil were calculated. The results are listed in Table 2.

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Abstract

The invention provides a heavy oil suspended bed hydrogenation method under a near clinical water condition. The method comprises the following steps of: making a mixture of heavy oil raw materials and water contacted with a hydrogenation catalyst in the presence of hydrogen gas to perform a hydrogenated reaction, wherein the reaction temperature is between 300 and 450 DEG C, and the reaction pressure is 6 to 20 MPa; and separating the reaction products to obtain the liquid distillates. In the method, the special action of the near clinical water integrates the hydrogenation characteristics of the catalyst, and on a basis of keeping a higher residue-to-oil conversion rate, the coke formation is inhibited to a maximum degree, and the yield of light oil is improved.

Description

technical field [0001] The invention relates to a method for cracking and refining hydrocarbon oil in the presence of hydrogen, more specifically a method for hydrogenation of heavy oil suspension bed under near-critical water conditions. Background technique [0002] As the world's petroleum resources become increasingly heavy and inferior, the market's demand for light oil products continues to increase, and environmental protection requirements are increasing, the technology of reducing heavy oil to light has attracted more and more attention. Heavy oil lightening technologies mainly include thermal processing, solvent deasphalting, residual oil catalytic cracking and residual oil hydrogenation. Hydrogenation technology has outstanding advantages in terms of product quality, saving crude oil or rational utilization of natural energy. Heavy oil hydrogenation mainly includes four process types: fixed bed, ebullated bed (expanded bed), slurry bed (suspended bed) and moving ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G47/02
Inventor 刘元东郜亮温朗友宗保宁慕旭宏俞芳
Owner CHINA PETROLEUM & CHEM CORP
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