Process for preparing carbon disulphide by using circulating fluid bed

A technology of circulating fluidized bed and carbon disulfide, which is applied in the technical field of preparing carbon disulfide in a circulating fluidized bed, can solve the problems of discontinuous production process, low production efficiency, high labor intensity, etc. effects of the environment

Active Publication Date: 2009-04-29
孔庆然
View PDF5 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of high energy consumption, high labor intensity, low production efficiency, discontinuous production process, equipment corrosion and serious environmental pollution in the existing carbon disulfide production process and equipment, the present invention provides a process for preparing carbon disulfide in a circulating fluidized bed

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Process for preparing carbon disulphide by using circulating fluid bed

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] A kind of technique that circulating fluidized bed prepares carbon disulfide, as figure 1 As shown, the specific steps are as follows:

[0024] (1) The carbon-containing solid matter is transported to the fluidized bed heating furnace 3 through the silo 1 and the feeder 2, and the temperature in the fluidized bed heating furnace 3 is controlled at 700-1200 ° C, and burned after being fluidized and burned by air Part of the carbon-containing solid matter releases heat to heat the remaining carbon-containing solid matter at the same time; (2) The heated carbon-containing solid matter enters the pre-lifter 5 through the hot charcoal pipeline 4, and moves along the riser tube under the action of the gas medium below the pre-lifter. 6 flows upward, the temperature in the riser 6 is controlled at 500-900°C, preferably 700-850°C, the gas medium below the pre-lifter 5 is selected from inert gas or carbon disulfide gas, and the superficial velocity of the mixed gas in the riser ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
Login to view more

Abstract

The invention relates to a production method for a compound comprising carbon and sulfur, in particular to the technology for preparing carbon bisulfide by a circulating fluid bed, which aims at solving the problems of high energy consumption, discontinuous production process, serious environment pollution and the like in the existing production technology. The method comprises the following steps: carbonic solid substances are sent to a fluidized bed furnace, the heated carbonic solid substances are then sent to a pre-raiser, a lift pipe and a fluidized bed layer and contact and react with sulfur, a quick separation device and a settler are used for separating the gaseous carbon bisulfide out, and the rest unreacted carbonic solid substances fall in a stripping section under the settler, and return to the fluidized bed furnace to be heated after the entrained carbon bisulfide gas is stripped by inert gases. The method has the advantages of greatly improving the contact efficiency of the reactant, requiring lower temperature owing to liquid sulfur, having simple device, simple structure and low construction cost, reducing pollution and improving product yield thanks to the arrangement of the stripping section, which is beneficial to the realization of continuous and automatic production and the environmental protection treatment in the production process.

Description

technical field [0001] The invention relates to a production method of a compound containing carbon and sulfur, in particular to a process for preparing carbon disulfide in a circulating fluidized bed. Background technique [0002] Carbon disulfide is an important chemical raw material, which is widely used in production sectors such as man-made fibers, pesticides, rubber, and metallurgical beneficiation. At present, there are three main technological routes for dry production of carbon disulfide. One is the high-temperature intermittent production route using the ancient electric furnace method, using sulfur and charcoal (or coke) as raw materials, which has high power consumption, high labor intensity, and low production efficiency. Equipment corrosion and environmental pollution are very serious, basically eliminated in China, and some small devices are still in operation abroad; the second is the traditional reaction retort batch production route, using sulfur and coke (...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap