Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Production process of eliminating simple substance sulphur from SO2 gas

A production process, a technology for elemental sulfur, applied in the fields of sulfur compounds, inorganic chemistry, non-metallic elements, etc., can solve the problems of complex purity process, high technical difficulty and high production cost, and achieve simple process, advanced technology and low production cost. Effect

Inactive Publication Date: 2007-08-22
蒋胜
View PDF0 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: to solve the problems in the prior art of producing sulfur dioxide and improving the purity of sulfur dioxide, which are complicated in process, difficult in technology, long in cycle and high in production cost, and provide a method with simple process, easy implementation, short cycle and low production cost. Low, high purity SO removal 2 Production process of elemental sulfur in gas

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
  • Production process of eliminating simple substance sulphur from SO2 gas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0007] Referring to Figure 1, the unpurified sulfur dioxide gas 6 is mixed with air or oxygen 5 and then enters the heat exchanger 1 for preheating, and then the mixed gas is heated to 300-700°C by the gas heater 2, and then enters the Sulfur trioxide generator 3 of divanadium catalyst, sulfur dioxide and oxygen react here to generate sulfur trioxide, and after heat exchange through heat exchanger 1, it is mixed with sulfur dioxide gas 9 containing sublimated sulfur, and enters the 20- In the desulfurization reactor 4 of 30% oleum, the sulfur trioxide in the oleum reacts with the sublimated sulfur at 100-140°C to convert the sublimated sulfur into sulfur dioxide, and the gas 12 from the desulfurization reactor contains a small amount Sulfur trioxide gas, after passing through the cooler 13, enters the concentrated sulfuric acid washing tower 14, and is washed with the concentrated sulfuric acid 15 of 90-98.5% with a concentration, and sulfur trioxide is absorbed by the concentr...

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

No PUM Login to View More

Abstract

The production process of eliminating simple substance sulfur from SO2 gas product includes the following steps: mixing SO2 gas product with air or oxygen and heating the mixture, reaction in a SO3 generator with V2O5 catalyst to produce SO3, mixing with SO2 gas product with simple substance sulfur, reaction of simple substance sulfur with SO3 in fuming sulfuric acid inside a sulfur eliminating reactor to convert into SO2, and final scrubbing and purifying in a concentrated sulfuric acid scrubbing tower. The present invention has simple technological process, high simple substance sulfur eliminating effect and high SO2 product purity.

Description

Technical field: [0001] The invention relates to a production process of inorganic chemical products, in particular to a production process for removing elemental sulfur in sulfur dioxide gas. Background technique: [0002] Sulfur dioxide is an important inorganic chemical product, mainly used as organic solvents, refrigerants, refining various lubricating oils and producing sulfites. The production methods of sulfur dioxide include sodium citrate method and oxygen combustion method. The production method of the oxygen combustion method is to melt the sulfur and burn it with slightly positive pressure oxygen or air on the surface of the liquid sulfur to generate sulfur dioxide gas at high temperature and produce sublimated sulfur at the same time. The liquid sulfur is cooled by a type water cooler, and the liquid sulfur is returned to use, and the gas continues to cool to about 40°C. After filtering to remove the sulfur solid particles, it is dried and filtered, then enters...

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
IPC IPC(8): C01B17/56C01B17/50
Inventor 蒋胜
Owner 蒋胜
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com