Catalytic hydrogenation desorption method for oxygenated compound in Fischer-Tropsch synthesized water phase and application thereof

A technology of Fischer-Tropsch synthesis and catalytic hydrogenation, which is applied in the direction of hydrocarbon production from oxygen-containing organic compounds, organic chemistry, chemical instruments and methods, etc., to achieve the effect of improving rationality, simple process flow and high efficiency

Active Publication Date: 2013-03-27
SYNFUELS CHINA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013]Because the water phase generated by the Fischer-Tropsch synthesis reaction is acid corrosive, it cannot be recycled directly, and it will cause environmental pollution if it is directly discharged as sewage

Method used

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  • Catalytic hydrogenation desorption method for oxygenated compound in Fischer-Tropsch synthesized water phase and application thereof
  • Catalytic hydrogenation desorption method for oxygenated compound in Fischer-Tropsch synthesized water phase and application thereof
  • Catalytic hydrogenation desorption method for oxygenated compound in Fischer-Tropsch synthesized water phase and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] 1.0 Ru / C catalyst preparation: prepared by equal volume impregnation method, the loading capacity of metal Ru is 1.0wt%, take 0.81 g of ruthenium chloride trihydrate solid and completely dissolve it in 50 mL of deionized water, and then quickly add 30 g of activated carbon into the solution , stirred gently for a few minutes, let it stand for 12 hours, and dried in a drying oven at 120°C for 12 hours.

[0039] Add 12 grams of 1.0Ru / C catalyst in the trickle bed reactor, and the Fischer-Tropsch synthesis water phase (raw material 1 with an acidity of 0.423%) of 2.62wt% organic oxygen-containing compound flows through the reactor at a flow rate of 0.2mL / min (airspeed is 1.0h -1 ), adjust the reaction temperature to be 110° C., and the reaction pressure to be 4.0 MPa. The reactor effluent is separated from gas and liquid by a condenser, and then analyzed. After the reaction, the removal rate of each component in the water phase and the acidity reduction rate of the water ...

Embodiment 2

[0041] 12 grams of 1.0 Ru / C catalysts were added to the trickle bed reactor, and the Fischer-Tropsch synthesis aqueous phase (raw material 1 with an acidity of 0.423%) containing 2.62 wt% of organic oxygen-containing compounds was passed through the reaction at a flow rate of 0.1 mL / min. device (space speed 0.5h -1 ), adjust the reaction temperature to be 210°C, and the reaction pressure to be 4.0MPa. The reactor effluent is separated from gas and liquid by a condenser, and then analyzed. After the reaction, the removal rate of each component in the water phase and the acidity reduction rate of the water phase are shown in Table 1.

Embodiment 3

[0043] 12 grams of 1.0 Ru / C catalysts were added to the trickle bed reactor, and the Fischer-Tropsch synthesis aqueous phase (raw material 1 with an acidity of 0.423%) containing 2.62 wt% of organic oxygen-containing compounds was passed through the reaction at a flow rate of 0.2 mL / min. device (airspeed is 1.0h -1 ), adjust the reaction temperature to be 210°C, and the reaction pressure to be 4.0MPa. The reactor effluent is separated from gas and liquid by a condenser, and then analyzed. After the reaction, the removal rate of each component in the water phase and the acidity reduction rate of the water phase are shown in Table 1.

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Abstract

The invention relates to a catalytic hydrogenation desorption method for an oxygenated compound in a Fischer-Tropsch synthesized water phase and an application thereof. The method comprises the following steps: taking a water phase co-produced from a Fischer-Tropsch synthetic oil production process as a raw material; under the action of a catalyst, adopting a hydrogenation reaction technique to convert an organic oxygenated compound in the water phase into a C1-C4 gas phase low-carbon alkane; and lastly, separating the C1-C4 gas phase low-carbon alkane from the water phase, thereby desorbing the organic oxygenated compound in the water phase. According to the method, the desorbing rate for the organic oxygenated compound is above 98%. The catalytic hydrogenation desorption method can be used for purifying the wastewater containing the organic oxygenated compound. The method is suitable for the purification treatment of the organic wastewater generated by chemical industry enterprises, food industry, and the like. The water treating method can be used for realizing the recycle of resources; the gas alkane generated under the action of catalytic hydrogenation can be reused in a Fischer-Tropsch synthetic process, thereby promoting the reasonability of the whole Fischer-Tropsch synthetic process; and the water after being treated also can be recycled.

Description

technical field [0001] The invention relates to a wastewater treatment method, in particular, the invention relates to a Fischer-Tropsch synthesis reaction wastewater treatment method. The method involves a liquid-phase hydrogenation reaction technology, which converts organic oxygen-containing compounds such as aldehydes, alcohols, acids, ketones, esters, and phenols into gaseous alkanes and removes them from organic waste water, especially a Fischer-Tropsch synthesis of organic compounds in the aqueous phase. The catalytic hydrogenation removal method of oxygen-containing compounds and its application solve the problems of recycling of Fischer-Tropsch synthetic water and environmental pollution. [0002] Background technique [0003] The development of coal liquefaction has become a long-term strategic measure to solve the contradiction between oil supply and demand in my country, and the Fischer-Tropsch synthesis reaction is the core reaction of indirect coal liquefaction...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/04C10G2/00C07C1/20C07C9/02
Inventor 郑洪岩陈伦刚李永旺朱玉雷
Owner SYNFUELS CHINA TECH CO LTD
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