Method for producing carbon bisulfide by fluidization process and its special equipment

A technology for carbon disulfide and special equipment, which is applied in the field of special equipment for producing carbon disulfide by adopting the fluidized bed process. easy to separate effects

Active Publication Date: 2007-03-28
SHANGHAI BAIJIN CHEM GROUP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention also solves the defects that the existing fluidized bed process has strict requirements on raw materials, large power consumption and high cost

Method used

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  • Method for producing carbon bisulfide by fluidization process and its special equipment

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Get 80-150 purpose semi-coke powder 1500Kg and put into feeding hopper 6. Adjust feed valve 5 to enter heating furnace 4 with a flow rate of 2 / Kg, and at the same time, an air compressor 19 blows air with an outlet pressure of 0.3Mpa into the air inlet hole at the bottom of heating furnace 4 to adjust the air flow rate so that the air entering the furnace The carbon powder raw material is in a fluidized state. Gas is introduced from the lower part of the furnace body to ignite the small-sized carbon powder that enters the furnace, and then the gas is cut off. In about 2 minutes, the infrared thermometer 8 shows that the temperature of the carbon powder reaches 800 ° C, and part of the hot carbon powder is transferred. The device 7 enters the carbon powder raw material introduction pipe 10, opens the valve 9, and the carbon powder raw material gathered in the pipe begins to enter the reaction furnace 13. At the same time, the nitrogen regulating valve 23 at the bottom of ...

Embodiment 2

[0039] Select 1500Kg of coke powder with a particle size of 30-100 mesh, and use the tunnel-type heating furnace and grate conveying method. The gas holes arranged along the bottom of the grate send the gas to the surface through the gap between the grate, and the gas burns to heat the coke powder. The grate is long. 5M, the end of the fire grate is connected with the carbon powder raw material introduction pipe 10. Coke powder is heated to 1050 DEG C and enters reaction furnace 13, enters furnace (reaction furnace) flow rate 100Kg / hour, sulfur enters furnace flow rate 270Kg / hour, produces carbon disulfide 264Kg / hour. The raw material reaction rate is 42%, and the outlet pressure of the nitrogen gas fed into the bottom of the reaction furnace is 0.55-0.6Mpa. The sulfur raw material entering the furnace is liquefied in the liquefaction tank 1 and then atomized into the furnace. Reaction furnace slag enters heating furnace for the second time after recovery, and other condition...

Embodiment 3

[0041] The carbon powder raw material is charcoal powder, with a particle size of 100-200 mesh and 1000Kg. The indirect heating method is adopted. The inner diameter of the heating furnace is 1 meter. The carbon powder raw material is placed in several heating tubes arranged vertically and obliquely in the furnace. At about 1200°C, the carbon powder temperature can reach about 900°C. A regulating valve is installed at the end of the heating tube and connected to the carbon raw material introduction pipe 10. A temperature detection device is connected to the lower part of the heating tube. The falling speed of the carbon powder raw material in the tube is determined by the The discharge speed control of the inlet nozzle. The inner diameter of the reaction furnace is 300mm. During normal reaction, the flow rate of carbon powder into the furnace (reaction furnace) is 138Kg / hour, and the temperature of sulfur vapor into the furnace is 731Kg / hour. Five inert gas inlets are installed...

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Abstract

The invention relates to a method of producing carbon bisulfide by fluidizing process, adding powdered raw materials into a heating furnace to heat to 750-1100 deg.C, leading them into a reaction furnace and charging inert gas to fluidize them, simultaneously adding in sulfur to react and producing carbon bisulfide. And it has advantages of wide raw material sources, low price, high reacting efficiency, etc.

Description

technical field [0001] The invention relates to a method for producing carbon disulfide, in particular to a method for producing carbon disulfide by adopting a fluidized bed process. The invention also relates to special equipment for the method. Background technique [0002] In the prior art, according to different carbon-containing raw materials, the production process of carbon disulfide is divided into natural gas method and solid carbon material method. The former is currently a commonly used technology in foreign countries. However, due to the constraints of raw materials, the production area is often far away from downstream users and requires long-distance transportation. Moreover, the cost of raw materials is high, equipment investment is large, and environmental protection costs are expensive, making it difficult to reduce production costs. The latter solid carbon material method is divided into external heating type reaction retort method, boiling furnace method ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/26
Inventor 孔庆然
Owner SHANGHAI BAIJIN CHEM GROUP
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