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

Purifier for adsorbing arsenic hydride and hydrogen phosphide in olefin tail gas and preparation method thereof

A purifying agent, arsine technology, which is applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc., to achieve the effects of low use cost, easy acquisition and simple composition

Active Publication Date: 2012-12-05
CHINA PETROLEUM & CHEM CORP +1
View PDF5 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these methods are mainly aimed at arsine and phosphine in air, inert gas, and carbon monoxide tail gas, and the treatment methods for arsine and phosphine in olefin tail gas have not been reported yet.

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
  • Purifier for adsorbing arsenic hydride and hydrogen phosphide in olefin tail gas and preparation method thereof
  • Purifier for adsorbing arsenic hydride and hydrogen phosphide in olefin tail gas and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Weigh 4g of potassium permanganate, 20g of copper sulfate, 20g of zinc sulfate, and 356 water to prepare a mixed solution, then immerse 100g of activated carbon particles in the prepared mixed solution, and stir at 80°C for 6 hours. Dry at 180° C. for 4 hours under the condition of nitrogen protection to obtain the finished cleaning agent. Active components: the mass percentage of potassium permanganate is 2.4%, the mass percentage of copper sulfate is 4.9%, the mass percentage of zinc sulfate is 5.0%; the mass percentage of carrier activated carbon is 87.7%. figure 1 Be 25mm in the pipe of long 200mm for cleaning agent (2) is packed into, and pipe two ends (1), (3) are airtight screw connection. Cracked ethylene gas containing 923ppb (volume fraction) arsine and 788ppb (volume fraction) phosphine is passed into the purification tube filled with purification agent at 100mL / min. GC-MS monitoring spectrum after continuous purification for 10 hours figure 2 , indicating...

Embodiment 2

[0026] Weigh 2g of potassium permanganate, 28g of copper sulfate, 24g of zinc sulfate, and 346 water to prepare a mixed solution, then immerse 100g of activated carbon particles into the prepared mixed solution, and stir at 90°C for 6 hours. Dry at 180° C. for 4 hours under the condition of nitrogen protection to obtain the finished cleaning agent. Active components: the mass percentage of potassium permanganate is 2.0%, the mass percentage of copper sulfate is 5.7%, the mass percentage of zinc sulfate is 5.2%; the mass percentage of carrier activated carbon is 87.1%. figure 1 Be 25mm in the pipe of long 200mm for cleaning agent (2) is packed into, and pipe two ends (1), (3) are airtight screw connection. Cracked ethylene gas containing 923ppb (volume fraction) arsine and 788ppb (volume fraction) phosphine is passed into the purification tube filled with purification agent at 100mL / min. GC-MS monitoring spectrum after continuous purification for 10 hours figure 2 , indicati...

Embodiment 3

[0028] Weigh 4g of potassium permanganate, 6g of copper nitrate, 8g of zinc nitrate, and 182g of water to prepare a mixed solution). Then 100 g of activated carbon particles were immersed in the prepared mixed solution, and stirred at 80° C. for 6 hours. Dry at 180° C. for 4 hours under the condition of nitrogen protection to obtain the finished cleaning agent. Active component: the mass percentage of potassium permanganate is 2.9%, the mass percentage of copper nitrate is 4.3%, the mass percentage of zinc nitrate is 4.8%; the mass percentage of carrier activated carbon is 88%. figure 1 Be 25mm in the pipe of long 200mm for cleaning agent (2) is packed into, and pipe two ends (1), (3) are airtight screw connection. Refinery propylene gas containing 1.61ppm (volume fraction) arsine and 632ppb (volume fraction) phosphine is passed into the purification pipe with purifying agent at 120mL / min. GC-MS monitoring spectrum after continuous purification for 10 hours figure 2 , indi...

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 normal-temperature purifier for adsorbing arsenic hydride and hydrogen phosphide in an olefin tail gas, belonging to the atmospheric pollution purification field. The purifier comprises following components in percentages by mass: 0.5-5% of potassium permanganate, 1-10% of soluble copper salt, 1-10% of soluble zinc salt and 75-97.5% of active carbon; the active carbon is a carrier; the potassium permanganate, and the soluble copper salt and the soluble zinc salt are active components. The preparation method of the purifier comprises following steps: (1), preparing a mixed water solution of the potassium permanganate, the soluble copper salt and the soluble zinc salt; (2), loading the potassium permanganate, the soluble copper salt and the soluble zinc salt on the active carbon carrier by a dipping method to obtain a carrier loaded with active metals; and (3), drying the carrier loaded with active metals in a drying medium to obtain the finished product purifier. The purifier disclosed by the invention has the advantages of simple component, low cost and low usage cost; after the purification, the content of arsenic hydride and hydrogen phosphide is less than 10ppb (volume percentage).

Description

technical field [0001] The invention relates to the field of air pollution purification, in particular to a purifying agent for removing arsine and phosphine gases in olefin tail gas during production or experiment by chemical adsorption. Background technique [0002] Crude oil imported from Russia and Central Asia contains high levels of arsenic and phosphide. The content of arsenic and phosphide in crude oil from Daqing and Xinjiang in my country is also generally high. With the continuous deepening of crude oil extraction, the impurity content in oil products, especially arsenic and phosphide, is increasing year by year. On the other hand, changes in domestic refinery crude oil, improvement of deep processing technology and continuous improvement of processing capacity lead to the presence of arsenic and phosphorus in different refined products. Products obtained from the secondary processing of high-arsenic and phosphorus oils, such as arsenic and phosphide in the tail...

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): B01J20/20B01J20/30B01D53/86B01D53/52B01D53/46B01J23/889
Inventor 陈松宋阳张颖
Owner CHINA PETROLEUM & CHEM CORP
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