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Gas-liquid separation process for hydrogenation reaction products

A technology of gas-liquid separation and reactants, which is applied in the gas-liquid separation process of hydrogenation reaction products and the gas-liquid separation process field of high-pressure hydrogenation reaction devices, can solve the problems of increasing the solubility of hydrogen, improve utilization efficiency, and reduce the cost of enterprises. Hydrogen cost, effect of demand reduction

Active Publication Date: 2021-07-16
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
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Problems solved by technology

Therefore, although the existing technology is conducive to reducing the energy consumption of the device, the thermal high-pressure separation setting has greatly increased the solubility of hydrogen in hydrocarbons

Method used

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  • Gas-liquid separation process for hydrogenation reaction products
  • Gas-liquid separation process for hydrogenation reaction products
  • Gas-liquid separation process for hydrogenation reaction products

Examples

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Embodiment 1

[0051] Taking a certain hydrocracking as an example, the plant scale is 2 million tons per year, the raw materials are straight-run wax oil and coker wax oil, and the production plan is a high-yield jet fuel once-through process.

[0052] The gas-liquid separation of the reaction product adopts the invention of this technology, and the specific process is as follows figure 1 shown. After heat exchange, the hydrogenation reaction product enters the hot high-pressure separator for gas-liquid separation, and the gas phase of the hot high-pressure separator (referred to as hot high-separation gas) undergoes heat exchange and cooling, and the gas phase of the medium-pressure separator (referred to as middle separation gas) The cold mid-partition gas enters the cold high-pressure separator after being further cooled by the hot high-fraction gas phase cooler. The gas phase of the cold high-pressure separator enters the circulating hydrogen desulfurization and compression system as c...

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Abstract

The invention discloses a gas-liquid separation process for hydrogenation reaction products. On the basis of an existing hydrocracking product separation process, a hot medium-pressure separator and a cold medium-pressure separator are arranged, and an outlet path with large dissolved hydrogen amount in the process of a hot high-pressure separator is changed, so that a large amount of dissolved hydrogen is discharged from the gas phase of a product separator, the hydrogen content of the gas phase of the separator is ensured, and hydrogen recovery or utilization is more facilitated. The process disclosed by the invention is beneficial to economically recovering hydrogen, and hydrogen can be recovered by utilizing the existing process, so that the hydrogen using cost of an enterprise is reduced; and meanwhile, the requirement of the device for public engineering hydrogen is reduced, and the hydrogen utilization efficiency of the device is improved.

Description

technical field [0001] The invention belongs to the technical field of hydrogenation process in petrochemical industry, and relates to a gas-liquid separation process method of a hydrogenation reaction product, in particular to a gas-liquid separation process of a high-pressure hydrogenation reaction device. [0002] technical background [0003] With the heavy and inferior quality of global crude oil, the deep refining and cleaning of petroleum products, and the refinement of the downstream chemical industry, petroleum processing technology has changed from simple to complex, from thermal processing to catalytic processing, from single technology to A variety of technologies coexist, from extensive to "environmentally friendly", and a leap forward has been made. Among them, as the most important means of producing clean transportation fuels and environmentally friendly oil products, an effective way to convert residual oil and heavy low-quality crude oil into high value-adde...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G53/00
CPCC10G53/00Y02P30/20
Inventor 张龙孟凡忠王红涛王阳峰
Owner CHINA PETROLEUM & CHEM CORP
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