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Novel slurry bed ft synthesis reactor

A Fischer-Tropsch synthesis and reactor technology, applied in the preparation of liquid hydrocarbon mixtures, chemical instruments and methods, and the petroleum industry, can solve optimization problems and achieve the effects of increasing temperature, accelerating diffusion speed, and slowing down hydrothermal action

Active Publication Date: 2013-01-09
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

In the above-mentioned existing slurry bed Fischer-Tropsch synthesis process and reaction equipment, there is no optimization of the operation process from the reaction process to improve the stability of the catalyst activity and reduce the selectivity of carbon dioxide and methane

Method used

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  • Novel slurry bed ft synthesis reactor

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Embodiment 1

[0024] use figure 1 In the slurry bed Fischer-Tropsch synthesis reactor shown, the heating medium is the heated steam flowing out of the cooling coil in the reaction section, and the Fischer-Tropsch synthesis catalyst used is 20%Co0.8%Pt / SiO 2 (Wt.), the reaction solvent is paraffin, the reaction temperature is 220°C, the reaction pressure is 2.0MPa, and the space velocity is 2.5Nm 3 / h / kg cat., H in syngas 2 / CO=2 (molar ratio), liquid foam, light hydrocarbons and water vapor are heated to 230°C in the gas-liquid diffusion section. The conversion rate of carbon monoxide, methane selectivity, carbon dioxide selectivity and 200h stability test results are listed in Table 1.

[0025] Table 1 Test results.

[0026] catalyst Initial activity and selectivity, CO conversion (%) Initial activity and selectivity, CH 4 Selectivity (wt%) Initial activity and selectivity, CO 2 Selectivity (wt%) 100h , CO conversion rate (%) 100h ,CH 4 Selectivity (wt%) 100h ,CO...

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Abstract

The invention discloses a novel slurry bed ft synthesis reactor, which comprises a reactor inlet, a reactor outlet, a reaction segment at the lower part of a reactor and a gas-liquid expansion section at the upper part of the reactor, the gas-liquid expansion section at the upper part of the reactor is a taper contraction section, the bottom of the taper contraction section is connected to a reaction segment, the outlet of the reactor is provided at the top. The reactor has high utilization rate of the inner space in the device and good demisting effect, and can enhance the conversion rate of carbon monoxide and stability of a ft synthesis catalyst, and can reduce the methane selectivity.

Description

technical field [0001] The invention relates to a slurry bed Fischer-Tropsch synthesis reactor. Background technique [0002] Fischer-Tropsch synthesis refers to synthesis gas (CO+H 2 ) on the catalyst to catalyze the reaction of synthesizing hydrocarbon liquid fuel. With the increasing depletion of petroleum resources, the preparation of liquid fuels by Fischer-Tropsch synthesis has attracted more and more attention from all over the world. [0003] The reactors used for F-T synthesis include fixed bed, circulating fluidized bed, fixed fluidized bed and slurry bed. The fixed bed reactor has the disadvantages of hot spots, clogging and low production capacity, the fluidization process of the circulating fluidized bed is difficult to control, the catalyst utilization rate is low and the wear is serious, and the production capacity is still low. Fixed fluidized bed is an improved form of circulating fluidized bed. It not only has a simple structure and is easy to operate,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J8/22C10G2/00C07C1/04
Inventor 李杰袁长富张舒冬宋喜军张喜文倪向前
Owner CHINA PETROLEUM & CHEM CORP
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