Equipment for preparing carbon disulfide with circulating fluidized bed

A circulating fluidized bed and carbon disulfide technology is applied in the field of equipment for preparing carbon disulfide in a circulating fluidized bed, and achieves the effects of easy fabrication, low cost and simple device structure

Active Publication Date: 2008-12-10
孔庆然
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above-mentioned various shortcomings in the existing carbon disulfide production process and equipment, the present invention provides a kind of equipment for preparing carbon disulfide in a circulating fluidized bed

Method used

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  • Equipment for preparing carbon disulfide with circulating fluidized bed
  • Equipment for preparing carbon disulfide with circulating fluidized bed
  • Equipment for preparing carbon disulfide with circulating fluidized bed

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1: as figure 1 Shown, it is the side-by-side structure described in the present invention

[0026] The equipment for preparing carbon disulfide in a circulating fluidized bed includes a silo 1, a feeder 2 and a fluidized bed heating furnace 3 connected to the feeder 2 through a pipeline. The diameter of the lower part of the fluidized bed heating furnace is smaller than that of the upper part; the fluidized bed heating furnace 3 is provided with a hot charcoal pipeline 4, the other end of the hot charcoal pipeline 4 communicates with the pre-lifter 5, and a riser 6 is connected above the pre-lifter 5, and a nozzle 7 is arranged on the riser 6, and the upper end of the riser 6 extends into the settler 8. A quick separation device 9 is installed at the end, the quick separation device is a cyclone separator, a cyclone separator 10 is arranged at the top of the settler, a stripping section 11 is arranged at the bottom of the settler, and a fluidized bed heating ...

Embodiment 2

[0028] Embodiment 2: as figure 2 Shown, is the parallel structure of the present invention

[0029] The difference from Example 1 is only that the upper diameter of the fluidized bed heating furnace is smaller than the lower diameter. In actual operation, the dilute phase velocity is increased to artificially reduce the efficiency of the cyclone separator to discharge the burned fly ash.

Embodiment 3

[0030] Embodiment 3: as image 3 Shown, is the parallel structure of the present invention

[0031] The difference with embodiment 1 is that a fluidized bed 14 is added in the middle of the riser 6 to prolong the reaction time. The diameter of the fluidized bed is greater than the diameter of the riser, and the diameter of the fluidized bed and its size are determined by the required reaction time ; In order to maintain the material level of the fluidized bed layer, the fluidized bed layer and the stripping section below the settler are connected through a circular tube, and a valve is installed on the circular tube to control the flow rate of the material body.

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Abstract

The invention relates to an apparatus for producing a compound containing carbon and sulfur, in particular to an apparatus for preparing carbon bisulfide with a circulating fluidized bed. The apparatus solves the disadvantages of the existing carbon bisulfide production process and equipment and comprises a storage hopper, a feeder and a fluidized bed furnace, a hot carbon pipeline is arranged under the fluidized bed furnace, the other end of the hot carbon pipeline is communicated with a pre-raiser, the upper part of the pre-raiser is connected with a riser which is provided with a nozzle, the upper end of the riser extends into a settler, the end of the riser is provided with a quick separation device, the internal top part of the settler is provided with a cyclone separator, the internal lower part of the settler is provided with a stripping section, and the lower part of the stripping section is provided with a cold carbon pipeline. By adopting the pre-raiser, the riser and the fluidized bed coating, the apparatus of the invention improves the contact efficiency of reactants; the sulfur can be a liquid state, the temperature is lower, the apparatus is simple; the arrangement of the stripping section can reduce pollution, and improve product yield; the apparatus has the advantages of simple structure, low cost, easy production, and is beneficial to realizing the continuous and automatic production and environmental protection treatment in course of production.

Description

technical field [0001] The invention relates to a production equipment for carbon and sulfur-containing compounds, in particular to equipment for preparing carbon disulfide in a circulating fluidized bed. Background technique [0002] Carbon disulfide is an important chemical raw material, which has a wide range of uses in industry, and is widely used in production departments such as man-made fibers, cellophane, pesticides, carbon tetrachloride, rubber, and petroleum refining. At present, the methods for producing carbon disulfide mainly include charcoal-sulfur method, coke-sulfur method and methane-sulfur method, and the technologies used are divided into fixed-bed technology and fluidized-bed technology. At present, a single fixed-bed reactor with indirect heating is commonly used in China. This method has problems such as high energy consumption, low equipment production capacity, large floor space, serious environmental pollution, and high labor intensity; and semi-coke...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/26
Inventor 卢春喜孔庆然王祝安王捷刘梦溪康和平
Owner 孔庆然
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