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Method for removing oxygen-containing compounds in Fischer-Tropsch synthetic oil

A Fischer-Tropsch synthetic oil and compound technology, which is applied in the treatment of hydrocarbon oil, petroleum industry, refined hydrocarbon oil, etc., can solve the problems of low olefin selectivity, short catalyst life, high reaction temperature, etc., and achieve high olefin content, small impact, The effect of low energy consumption

Pending Publication Date: 2022-05-13
INNER MONGOLIA YITAI COAL BASED NEW MATERIALS RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0022] Existing methods for the removal of oxygenated compounds by catalyzed reaction with molecular sieves have the problems of high reaction temperature, short catalyst life and low olefin selectivity

Method used

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  • Method for removing oxygen-containing compounds in Fischer-Tropsch synthetic oil

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] This embodiment provides a method for removing oxygenated compounds in Fischer-Tropsch synthetic oil (C7 raw oil product), specifically as follows:

[0067] (1) Pre-processing:

[0068] ①Use the air pump to purge the fixed bed reaction device; calibrate the liquid delivery pump.

[0069] ②Catalyst loading:

[0070] Add quartz sand and quartz wool to the lower part of the reactor, then mix sulfonic acid resin (YT-01 sulfonic acid resin) and molecular sieve (3A molecular sieve) in a certain proportion, fill it in the constant temperature zone, and add quartz wool to the upper part.

[0071] ③ Nitrogen purging equipment pipeline.

[0072] (2) Removal process:

[0073] ① Inflate the fixed bed reactor with nitrogen to pressurize the reaction system to 0.5Mpa, and the temperature of the reactor bed rises to 60°C.

[0074] ② Start the pump to transport the Fischer-Tropsch synthetic oil to be processed into the reactor for experimentation.

[0075] ③ Start sampling after t...

Embodiment 2

[0087] This embodiment provides a method for removing oxygenated compounds in Fischer-Tropsch synthetic oil (C7 raw oil product), specifically as follows:

[0088] (1) Pre-processing:

[0089] ①Use the air pump to purge the fixed bed reaction device; calibrate the liquid delivery pump.

[0090] ②Catalyst loading:

[0091] Add quartz sand and quartz wool to the lower part of the reactor, then mix sulfonic acid resin (YT-01 sulfonic acid resin) and molecular sieve (3A molecular sieve) in a certain proportion, fill it in the constant temperature zone, and add quartz wool to the upper part.

[0092] ③ Nitrogen purging equipment pipeline.

[0093] (2) Removal process:

[0094] ① Inflate the fixed bed reactor with nitrogen to pressurize the reaction system to 0.5Mpa, and the temperature of the reactor bed rises to 80°C.

[0095] ② Start the pump to transport the Fischer-Tropsch synthetic oil to be processed into the reactor for experimentation.

[0096] ③ Start sampling after t...

Embodiment 3

[0108] This embodiment provides a method for removing oxygenated compounds in Fischer-Tropsch synthetic oil (C7 raw oil product), specifically as follows:

[0109] (1) Pre-processing:

[0110] ①Use the air pump to purge the fixed bed reaction device; calibrate the liquid delivery pump.

[0111] ②Catalyst loading:

[0112] Add quartz sand and quartz wool to the lower part of the reactor, then mix sulfonic acid resin (YT-01 sulfonic acid resin) and molecular sieve (3A molecular sieve) in a certain proportion, fill it in the constant temperature zone, and add quartz wool to the upper part.

[0113] ③ Nitrogen purging equipment pipeline.

[0114] (2) Removal process:

[0115] ① Inflate the fixed bed reactor with nitrogen to pressurize the reaction system to 0.5Mpa, and the temperature of the reactor bed rises to 100°C.

[0116] ② Start the pump to transport the Fischer-Tropsch synthetic oil to be processed into the reactor for experimentation.

[0117] ③ Start sampling after ...

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Abstract

The invention discloses a method for removing oxygen-containing compounds in Fischer-Tropsch synthetic oil, and belongs to the technical field of Fischer-Tropsch oil treatment. The method comprises the following steps: in a fixed bed reaction device, removing oxygen-containing compounds in Fischer-Tropsch synthetic oil to be treated by using sulfonic acid resin; the weight ratio of the sulfonic acid resin to the Fischer-Tropsch synthetic oil to be treated is 1: (100-200). According to the method, sulfonic acid resin and Fischer-Tropsch synthetic oil are subjected to a reaction, so that oxygen-containing compounds in the Fischer-Tropsch synthetic oil can be removed through the reaction under the condition of ensuring no loss of straight-chain olefins, and additional straight-chain olefins are generated at the same time, so that the olefin content in an oil product is greatly improved. In addition, the method is beneficial to prolonging the service life of the sulfonic acid resin, few by-products are generated, the influence on the purity of olefin is small, the energy consumption is low, and the economic benefit is high.

Description

technical field [0001] The invention relates to the technical field of Fischer-Tropsch oil treatment, in particular to a method for removing oxygen-containing compounds in Fischer-Tropsch synthetic oil. Background technique [0002] Fischer-Tropsch synthetic oil contains about 5wt% of oxygen-containing compounds, mainly including organic acids, alcohols, ketones, aldehydes, esters and alkyl acids. The presence of organic acids will seriously corrode equipment, which is not conducive to the further processing of synthetic oils; while oxygen-containing compounds such as alcohols, aldehydes, ketones, etc. will undergo complexation or substitution reactions with Lewis acid catalysts, causing some catalysts to be poisoned and deactivated; The presence of oxygen compounds will also have varying degrees of impact on the oil's odor, color, and oxidation stability of lubricating base oils. [0003] Oxygen compounds in Fischer-Tropsch synthetic oil will affect the subsequent developm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G45/04C10G29/20C10G53/08
CPCC10G45/04C10G29/20C10G53/08C10G2300/1022C10G2300/202
Inventor 钱震武靖为张越奥正旭张新平李闯张晓龙李俊诚李志飞郭轩亨史向强
Owner INNER MONGOLIA YITAI COAL BASED NEW MATERIALS RES INST CO LTD
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