Technique for extracting residual acetylene gas in acetylene generator (wet method) carbide slag slurry

An acetylene generator and calcium carbide slurry technology are applied in the parts of acetylene gas generators, acetylene generators, petroleum industry and other directions, which can solve the problems of environmental pollution and waste of raw material acetylene gas.

Inactive Publication Date: 2008-08-06
常泽民
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During this process, the saturated and dissolved acetylene gas in the supernatant diffuses into the atmosphere during the cooling process, and the acetylene gas adsorbed in the calcium carbide slag filter cake is taken away by the filter cake, resulting in waste of raw material acetylene gas and pollution to the environment
In the same industry in China, there is no technology for extracting and reusing residual acetylene in carbide slag slurry, which is blank

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
  • Technique for extracting residual acetylene gas in acetylene generator (wet method) carbide slag slurry

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] 1. Collect all the carbide slag slurry discharged from the acetylene generator into the buffer tank (V101), and then send it to the desorption tower (T101). The slurry settled at the bottom of the buffer tank is regularly discharged into the settling tank. Under the action of the vacuum pump (P101), the desorption tower (T101) maintains a negative pressure of -0.06~-0.08MPa, and the residual acetylene gas in the carbide slag slurry is decomposed by boiling, and at the same time, the solid Ca(OH) 2 The adsorbed acetylene gas is also separated out, and the water vapor and acetylene gas are separated at the top of the stripping tower (T101). The separated calcium carbide slag slurry flows into the concentration tank (V103) from the sewage outlet at the bottom of the separation tower (T101). The purity of the separated acetylene gas can reach more than 95%, which can be directly incorporated into the acetylene system. The invention adopts a combined desorption tower, which...

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 invention relates to a process equipment technique for extracting supersaturated acetylene gas from carbide slag slurry of a wet-method acetylene generator. The technique comprises feeding carbide slag slurry about 80 DEG C into a desorption tower under the state of negative pressure, doffing out acetylene gas which is adsorbed in carbide slag and water through utilizing vapor, damaging a coating layer of micro grain calcium carbide which is not broken up to be further hydrolyzed. Acetylene gas which is doffed is recycled after being processed.

Description

Technical field: [0001] The invention relates to a method for extracting residual acetylene gas from acetylene generator (wet process) carbide slag slurry in the polyvinyl chloride industry. Background technique: [0002] At present, in the domestic polyvinyl chloride industry, the calcium carbide slag slurry is filtered through the thickening tank. After the pressure filtration, the supernatant is recycled, and the calcium carbide slag filter cake with a water content of about 30% is transported away. During this process, the saturated and dissolved acetylene gas in the supernatant diffuses into the atmosphere during the cooling process, and the acetylene gas adsorbed in the calcium carbide slag filter cake is taken away by the filter cake, resulting in waste of raw material acetylene gas and pollution to the environment . In the same domestic industry, there is no technology for extracting and reusing residual acetylene in carbide slag slurry, which is a blank. Inventio...

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): C10H21/00
Inventor 常泽民
Owner 常泽民
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