Low-temperature slurry reactor Fischer-Tropsch synthesis system and separation technology thereof

A Fischer-Tropsch synthesis, slurry bed technology, which is applied in the preparation of liquid hydrocarbon mixtures, petroleum industry, chemical instruments and methods, etc., can solve the problems that do not involve the effective separation of catalyst fine particles and/or dust, and are not specified.

Inactive Publication Date: 2013-05-22
CHNA ENERGY INVESTMENT CORP LTD +1
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  • Abstract
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  • Application Information

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Problems solved by technology

[0010] CN101979468A and CN102746870A respectively disclose a low-carbon emission Fischer-Tropsch synthesis reaction process and a Fischer-Tropsch synthesis process, but do not specify whether they are slurry bed Fischer-Tropsch synthesis processes, nor involve catalyst fine particles and / or dust effective separation of

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  • Low-temperature slurry reactor Fischer-Tropsch synthesis system and separation technology thereof
  • Low-temperature slurry reactor Fischer-Tropsch synthesis system and separation technology thereof
  • Low-temperature slurry reactor Fischer-Tropsch synthesis system and separation technology thereof

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Embodiment 1

[0051] use figure 2 The shown system of the present invention carries out the Fischer-Tropsch synthesis process, and the reactor is a low-temperature slurry bubble-bed Fischer-Tropsch synthesis reactor with an internal diameter of 150 millimeters and a height of 22 meters. The Fischer-Tropsch synthesis reaction is carried out in a reactor, wherein the operating conditions and operating parameters of the reactor are as follows: operating temperature: 255°C; operating pressure: 2.9MPa; H 2 / CO feed volume ratio: 1.5; space velocity: 2500 Nm3 / ton catalyst / hour, superficial gas velocity at reactor inlet: 0.25m / s.

[0052] The selected catalyst is: Precipitated 100Fe-3Cu-4K-12SiO prepared by spray drying method 2 (Mass ratio) Microspherical iron-based Fischer-Tropsch synthesis reaction catalyst, the particle size is between 30 and 100 microns, the average particle size is about 75 microns, and the density is about 0.75g / cm 3 .

[0053] When the reactor starts running, H 2 and ...

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Abstract

The invention discloses a low-temperature slurry reactor Fischer-Tropsch synthesis system and a separation technology thereof. The system comprises at least one low-temperature slurry reactor Fischer-Tropsch synthesis reactor, at least one heat exchanger, at least one gas-slurry separator and at least one gas-liquid separation system, wherein the heat exchanger is used for partially cooling a gaseous product from the reactor and condensing partial gaseous product; the gas-slurry separator is used for separating the condensation product from other gaseous products and/or steam; the gas-liquid separation system is used for separating the other gaseous products and/or steam into a condensable liquid product and a non-condensable gaseous product; the heat exchanger and the gas-liquid separator are located outside the reactor; and the catalyst fine particles and/or dust carried by the gaseous product and/or steam is separated from other gaseous products and/or steam along with the condensation product of the heat exchanger so that the catalyst fine particles and/or dust does not exist in the Fischer-Tropsch wax product and in the condensable liquid product.

Description

technical field [0001] The present invention relates to a low-temperature slurry-bed Fischer-Tropsch synthesis system and its separation process, in particular to a low-temperature slurry-bed Fischer-Tropsch synthesis system capable of effectively separating catalyst fine particles and / or dust and improving the thermal efficiency of the system, and its separation process. Background technique [0002] Fischer-Tropsch synthesis was jointly discovered by German chemists Fischer and Tropsch in the 1920s. It is a synthetic gas (CO+H 2 ) into hydrocarbons. In the 1950s, South African Sasol Company realized the large-scale industrial production of Fischer-Tropsch synthesis. Its reactors went through the initial fixed bed reactor, circulating fluidized bed reactor and fixed fluidized bed reactor. Until the 1990s, the application The latest slurry bed reactor, especially the slurry bubble bed reactor. [0003] The slurry bed reactor has the advantages of high production efficienc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J8/22C10G2/00
Inventor 翁力门卓武卜亿峰栾贵玺张晓方于佩潜
Owner CHNA ENERGY INVESTMENT CORP LTD
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