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Method for regenerating catalyst for treating Fischer-Tropsch reaction synthesized water

A Fischer-Tropsch reaction and catalyst technology, which can be used in catalyst regeneration/reactivation, physical/chemical process catalysts, chemical instruments and methods, etc., and can solve problems such as catalyst deactivation

Active Publication Date: 2017-06-30
CHNA ENERGY INVESTMENT CORP LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to solve the problem of catalyst deactivation in the process of treating Fischer-Tropsch reaction to synthesize water, and to provide a catalyst regeneration method for treating Fischer-Tropsch reaction to synthesize water

Method used

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  • Method for regenerating catalyst for treating Fischer-Tropsch reaction synthesized water
  • Method for regenerating catalyst for treating Fischer-Tropsch reaction synthesized water
  • Method for regenerating catalyst for treating Fischer-Tropsch reaction synthesized water

Examples

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Embodiment 1

[0042] This example illustrates the regeneration method of the deactivated catalyst of the present invention.

[0043] (1) Treatment of Fischer-Tropsch reaction synthetic water: figure 1 As shown, equal amounts of the same catalyst 2a, 2b (composition 5wt% Ru / 95wt% AC) were charged in two aqueous phase reforming reactors 1a, 1b, respectively. The water phase reforming reactor 1b is closed, and the Fischer-Tropsch reaction synthesis water (oxygenated organic matter content 4.7% by weight, COD is 82705mg / L, and the specific composition is shown in Table 1) is sent into the water phase reforming reactor 1a. The liquid mass space velocity of the whole reaction is 10h -1 , the temperature of the aqueous phase reforming reaction is 250° C., and the pressure is 52 atm.

[0044] The reaction product is sent to the gas-liquid separation tank to obtain clean water.

[0045] From the beginning of the reaction, take samples at regular intervals, extract the clean water obtained from th...

Embodiment 2

[0054] This example illustrates the regeneration method of the deactivated catalyst of the present invention.

[0055] (1) Treatment of Fischer-Tropsch reaction synthetic water: figure 1 As shown, equal amounts of the same catalyst 2a, 2b (composition 5wt% Ru / 95wt% AC) were charged in two aqueous phase reforming reactors 1a, 1b, respectively. The water phase reforming reactor 1b is closed, and the Fischer-Tropsch reaction synthesis water (the content of oxygen-containing organic matter is 4.7% by weight, COD is 82705mg / L) is sent into the water phase reforming reactor 1a, the quality of the water phase reforming reaction Airspeed is 10h -1 . The temperature of the aqueous phase reforming reaction is 220° C., and the pressure is 31 atm.

[0056] The reaction product is sent to the gas-liquid separation tank to obtain clean water.

[0057] From the beginning of the reaction, take samples at regular intervals, extract the clean water obtained from the reaction, measure the CO...

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Abstract

The invention discloses a method for regenerating a catalyst for treating Fischer-Tropsch reaction synthesized water. The method comprises the following steps of (1) performing water-phase reforming reaction on the Fischer-Tropsch reaction synthesized water under the action of the catalyst, so as to obtain a deactivated catalyst; (2) enabling the deactivated catalyst to be in contact with hydrogen-containing gas or nitrogen to perform regeneration reaction, and enabling the deactivated catalyst to restore activity, so as to obtain the regenerated catalyst. The method has the advantages that the deactivation of the catalyst in the water-phase reforming reaction is overcome, and the continuous regeneration of the catalyst for treating the Fischer-Tropsch reaction synthesized water is effectively guaranteed.

Description

technical field [0001] The invention relates to a regeneration method of a catalyst for treating Fischer-Tropsch reaction to synthesize water. Background technique [0002] Fischer-Tropsch synthesis is an industrial method for directly converting synthesis gas (a mixture of carbon monoxide and hydrogen) into liquid fuels such as diesel or gasoline. While producing hydrocarbon-based liquid fuels, the Fischer-Tropsch synthesis reaction will produce >50% by weight of reactive synthetic water (abbreviated as FT-RCW). [0003] Due to the side reaction of generating oxygenated compounds in the Fischer-Tropsch synthesis reaction, the Fischer-Tropsch synthesis water usually contains 2-8% by weight of oxygenated organic compounds, including alcohols, carboxylic acids, aldehydes, ketones and esters. It is worth pointing out that Fischer-Tropsch synthetic water is a high-concentration organic wastewater that hardly contains any salt. Therefore, as long as the dissolved organic mat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J38/04B01J38/10C02F1/00C02F101/34C02F103/36
CPCB01J38/04B01J38/10C02F1/00C02F2101/34C02F2103/365
Inventor 刘社田朱庆军刘媛蒋明哲李晓峰
Owner CHNA ENERGY INVESTMENT CORP LTD
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