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Method for catalytic hydrogenation of heavy crude oil by using methane

A technology for heavy crude oil and catalytic hydrogenation, which is applied in the fields of hydrotreating process, petroleum industry, processing hydrocarbon oil, etc., can solve the problems such as the industrial application of methane hydrogenation of heavy crude oil, etc., to improve the effect of hydrogenation reaction, The effect of reducing carbon dioxide emissions and simplifying the process

Inactive Publication Date: 2019-03-26
广西华大骄阳能源环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is no industrial application of methane hydrogenation of heavy crude oil based on this idea.

Method used

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  • Method for catalytic hydrogenation of heavy crude oil by using methane
  • Method for catalytic hydrogenation of heavy crude oil by using methane
  • Method for catalytic hydrogenation of heavy crude oil by using methane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] The heavy crude oil is preheated to 70°C in the raw material tank, and the preheated heavy crude oil is mixed with high-pressure methane in the pipeline and passed into the fixed-bed reactor filled with HOU2-2 catalyst. The reaction temperature is 400°C and the operating pressure is 50 atmospheres. The volume space velocity (LHSV) of heavy crude oil is 1h -1 , the volumetric space velocity of methane is 12h -1 ;Under the action of the catalyst, methane will undergo catalytic hydrogenation reaction with heavy crude oil; after the hydrogenation reaction is completed, the product oil flows out from the bottom of the reactor and is passed into the gas-liquid separation tank for gas-liquid separation; the gas-liquid separation tank is equipped with The cooling system reduces the temperature of the product oil to about room temperature; after the gas-liquid separation is completed, the tail gas flows into the after-treatment system, and the product oil flows into the product...

Embodiment 2

[0051] Preheat the heavy crude oil to 70°C in the raw material tank, mix the preheated heavy crude oil with high-pressure methane in the pipeline and pass it into the fixed bed reactor filled with HOU 2-3 catalyst; the reaction temperature is 430°C, The operating pressure is 50 atmospheres; the volume space velocity (LHSV) of heavy crude oil is 0.5h -1 , the volumetric space velocity of methane is 20h -1 . Under the action of the catalyst, methane will undergo catalytic hydrogenation reaction with heavy crude oil; after the hydrogenation reaction is completed, the product oil flows out from the bottom of the reactor and passes into the gas-liquid separation tank for gas-liquid separation; the gas-liquid separation tank is equipped with cooling The system lowers the temperature of the product oil to about room temperature; after the gas-liquid separation is completed, the tail gas flows into the after-treatment system, and the product oil flows into the product tank for collec...

Embodiment 3

[0056] Due to its good heat and mass transfer effect and uniform material dispersion, the slurry bed reactor has shown great development potential in petrochemical and other fields in recent years.

[0057] In this embodiment, a gas-liquid-solid three-phase slurry bed reactor is used to carry out the methane catalytic hydrogenation reaction of heavy crude oil, and the specific operations are as follows:

[0058] Preheat the heavy crude oil to 70°C in the raw material tank, mix the preheated heavy crude oil with the catalyst at a volume ratio of 1:1, and then pass it into the three-phase slurry bed reactor, and the catalyst is evenly dispersed in the liquid bed middle;

[0059] After the high-pressure methane is passed into the reactor, it passes through the bed in the form of bubbling, and reacts with heavy crude oil under the action of a uniformly dispersed catalyst. The reaction temperature is 410°C and the operating pressure is 50 atmospheres;

[0060] The volumetric space...

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Abstract

The invention discloses a method for catalytic hydrogenation of heavy crude oil by using methane. Heavy crude oil is pumped into a hydrogenation reactor containing catalysts; methane is used as reaction gas for catalytic hydrogenation reaction; macromolecules in the heavy crude oil are decomposed into alkane and light-weight aromatic compounds; product oil flows out from a lower side of the hydrogenation reactor and is introduced into a gas-liquid separation tank for gas-liquid separation; tail gas flows out from the pipeline from the top of the gas-liquid separation tank and is used for subsequent treatment; product oil flows into a product tank from the bottom of the gas-liquid separation tank to be collected; the gas liquid separation tank is connected with a cooling system for reducingthe temperature of the product oil; the viscosity of the obtained product oil is 107 to 379 mPa.s; the density is 0.9511 to 0.9642 g / ml; the total acidity is 0.02 to 1.55 mg KOH / g; the average molecular weight is 172 to 210 g / mol; the water content is 0.21 to 0.30 weight percent; the product liquid yield is 96.9 to 104 percent. The operation cost of the technical flow process is reduced; the hydrogenation reaction effect is effectively improved; the operation pressure is reduced; a green and environmental-friendly process is achieved.

Description

technical field [0001] The invention belongs to the technical field of petroleum refining, and in particular relates to a method for catalytic hydrogenation of heavy crude oil using methane. Background technique [0002] Today, petroleum is still one of the most important fossil energy and chemical raw materials in the world, and has become an important driving force for economic, industrial and social development. The demand and consumption of petrochemical products are increasing worldwide. However, the reserves of traditional light crude oil are decreasing year by year, showing an increasingly depleted trend. Therefore, unconventional oil resources, including heavy crude oil, are attracting increasing attention. Heavy crude oil reserves are abundant, mainly from Venezuela, Canada, and Saudi Arabia. my country has signed a series of heavy crude oil trading agreements with Venezuela, and at the same time obtained a stable source of heavy crude oil in Canada through the a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G67/02
CPCC10G67/02
Inventor 宋华
Owner 广西华大骄阳能源环保科技有限公司
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