Two-step super-depth method for removing arenes from natural gas synthetic oil

A technology for natural gas and synthetic oil, applied in the field of hydrorefining natural gas to synthetic oil, can solve the problem of high content of aromatics

Active Publication Date: 2007-06-27
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The deficiency of above-mentioned prior art is that the aromatic hydrocarbon content of target product is still higher

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The natural gas-to-oil raw material and hydrogen enter the first reactor, where the hydrogen partial pressure is 8.0MPa, the reaction temperature is 220°C, and the liquid hourly volume space velocity is 3.0h -1 , The volume ratio of hydrogen to oil is 700Nm 3 / m 3 Contact reaction with non-precious metal hydrorefining catalyst RA-1A under certain reaction conditions; the stream after reaction enters the second reactor directly without separation, under the conditions of hydrogen partial pressure of 8.0MPa, reaction temperature of 260°C, liquid hourly volume space velocity 1.1h -1 , The volume ratio of hydrogen to oil is 700Nm 3 / m 3 Under certain reaction conditions, it reacts with the non-precious metal hydrorefining catalyst RA-1A, and the reaction effluent is separated into liquid products through a high-pressure and low-pressure gas-liquid separation system, and the hydrogen-rich gas is returned to the two reactors for recycling through a circulating compressor. ...

Embodiment 2

[0033] The natural gas-to-oil raw material and hydrogen enter the first reactor, where the hydrogen partial pressure is 8.0MPa, the reaction temperature is 220°C, and the liquid hourly volume space velocity is 3.0h -1 , The volume ratio of hydrogen to oil is 700Nm 3 / m 3 Contact reaction with non-precious metal hydrorefining catalyst RA-1A under certain reaction conditions; the stream after reaction enters the second reactor directly without separation, under the conditions of hydrogen partial pressure of 8.0MPa, reaction temperature of 260°C, liquid hourly volume space velocity 1.1h -1 , The volume ratio of hydrogen to oil is 700Nm 3 / m 3 Under certain reaction conditions, it reacts with the precious metal hydrorefining catalyst RLF-10, and the reaction effluent passes through a high-pressure and low-pressure gas-liquid separation system to separate the liquid product, and the hydrogen-rich gas is returned to the two reactors for recycling through the circulating compresso...

Embodiment 3

[0036] The natural gas-to-oil raw material and hydrogen enter the first reactor, where the hydrogen partial pressure is 8.0MPa, the reaction temperature is 220°C, and the liquid hourly volume space velocity is 3.0h -1 , The volume ratio of hydrogen to oil is 700Nm 3 / m 3 Contact reaction with non-precious metal hydrorefining catalyst RA-1A under certain reaction conditions; the stream after the reaction directly enters the second reactor without separation, and the hydrogen partial pressure is 8.0MPa, the reaction temperature is 280°C, and the liquid hourly volume space velocity 1.1h -1 , The volume ratio of hydrogen to oil is 700Nm 3 / m 3 Under certain reaction conditions, it reacts with the precious metal hydrorefining catalyst RLF-10, and the reaction effluent passes through a high-pressure and low-pressure gas-liquid separation system to separate the liquid product, and the hydrogen-rich gas is returned to the two reactors for recycling through the circulating compresso...

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Abstract

This invention relates to a method for super-deep removing aromatics in two steps from natural gas synthetic oil, in which, a natural gas synthetic oil raw material and H enter into a first fixed bed reactor at the same time to contact and react with a hydrofining catalyst, the reacted substance from the first reactor enters into a second fixed bed reactor directly to contact and react with an aromatic saturated catalyst to get a gas-oil mixture to be separated and fractionated to get the target product, the gas with rich H is used circularly by a circulating compressor.

Description

technical field [0001] The invention relates to a method for refining hydrocarbon oil with hydrogen, more specifically, the present invention is a method for refining natural gas synthetic oil through hydrogenation. Background technique [0002] In the 21st century, the world's oil refining industry is facing the crisis of the gradual depletion of oil resources and the dual pressure of using environmentally friendly processes to produce clean fuels. The natural gas-to-liquids technology that can meet the challenges of increasingly stringent environmental regulations is emerging as a way to efficiently utilize natural gas. Become a new way to produce clean fuel in the new century. [0003] Fractions such as kerosene and diesel oil obtained after converting natural gas into synthetic oil by Fischer-Tropsch synthesis process must undergo corresponding hydrotreating and upgrading to become liquid fuels that meet the requirements of engines. The process of natural gas to synthet...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G45/52
Inventor 胡志海李毅熊震霖卫剑康小洪夏国富
Owner CHINA PETROLEUM & CHEM CORP
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