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

A technology of 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

[0010] 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 enters the reactor together with hydrogen, at a hydrogen partial pressure of 8.0MPa, a reaction temperature of 220°C, and a liquid hourly volume space velocity of 0.8h -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; the reacted stream passes through a high-pressure and low-pressure gas-liquid separation system to separate liquid products, and the hydrogen-rich gas goes back to the reactor for recycling through a circulating compressor.

[0031] The reaction conditions and main product properties are listed in Table 2. It can be seen from Table 2 that the content of aromatics in the reaction product was reduced to 621 μg / g, and the removal rate of aromatics calculated from this was 99.18%.

Embodiment 2

[0033] The natural gas-to-oil raw material enters the reactor together with hydrogen, at a hydrogen partial pressure of 8.0MPa, a reaction temperature of 280°C, and a liquid hourly volume space velocity of 0.8h -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; the reacted stream passes through a high-pressure and low-pressure gas-liquid separation system to separate liquid products, and the hydrogen-rich gas goes back to the reactor for recycling through a circulating compressor.

[0034] The reaction conditions and main product properties are listed in Table 2. It can be seen from Table 2 that the content of aromatics in the reaction product was reduced to 173 μg / g, and the removal rate of aromatics calculated from this was 99.77%.

[0035] The reaction product was cut, and the aromatic hydrocarbon content and main properties of the kerosene fraction and diesel fractio...

Embodiment 3

[0037] The natural gas-to-oil raw material enters the reactor together with hydrogen, at a hydrogen partial pressure of 6.4MPa, a reaction temperature of 260°C, and a liquid hourly volume space velocity of 0.8h -1 , The volume ratio of hydrogen to oil is 700 Nm 3 / m 3 Under certain reaction conditions, it reacts with the precious metal hydrorefining catalyst RLF-10; the reacted stream passes through a high-pressure and low-pressure gas-liquid separation system to separate liquid products, and the hydrogen-rich gas goes back to the reactor for recycling through a circulating compressor.

[0038] The reaction conditions and main product properties are listed in Table 2. It can be seen from Table 2 that the aromatics content of the reaction product was reduced to 271 μg / g, and the calculated aromatics removal rate was 99.64%.

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Abstract

This invention relates to a method for super-deep removing aromatics in natural gas synthetic oil, in which, a synthetic oil raw material and H enter into a fixed bed reactor at the same time to contact and react with a noble metal catalyst under the following operation conditions temperature: 200-400deg.C total pressure: 2.5~10.0Mpa H branch pressure 2.0-9.0Mpa, H-oil ratio 200~1000N cum / cum, the volume space velocity in liquid: 1.0~1h to get a mixture of oil and gas to be separated and fractionated to get the target product and gas with rich H can be circularly used 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] The demand for fuels in production and living in the world is growing rapidly. At the same time, governments from the perspective of environmental protection and social sustainable development are increasingly strict on their quality legislation. The production of clean fuels that meet the requirements of environmental protection regulations has become a matter of concern to refining and chemical enterprises. The key to survival and development. The various fractions derived from conventional petroleum, especially middle distillate fractions, are a major source of fuel for vehicles and households. With the gradual depletion of petroleum resources, various alternative energy sources are being paid more and more attention and research...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G45/52
Inventor 李毅胡志海熊震霖卫剑石亚华康小洪夏国富李大东
Owner CHINA PETROLEUM & CHEM CORP
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