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

A kind of regenerable catalyst for removing organic chlorine and preparation method thereof

A catalyst and organochlorine technology, applied in chemical instruments and methods, physical/chemical process catalysts, heterogeneous catalyst chemical elements, etc., can solve problems such as low dynamic adsorption rate, limited adsorption capacity, and short service life

Active Publication Date: 2020-08-28
WUHAN KELIN FINE CHEM
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although 13X molecular sieve has a certain removal effect on organic chlorine, its total adsorption capacity is limited, its dynamic adsorption rate is low, and its service life is short.

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
  • A kind of regenerable catalyst for removing organic chlorine and preparation method thereof
  • A kind of regenerable catalyst for removing organic chlorine and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] 197g aluminum sol (Al 2 o 3 The content of 22%), 33.3g silica sol (SiO 2 content of 30%), 38.1g of nickel nitrate, 2.5g of tetraethylammonium bromide and 300g of water, stirred for 6 hours, and mixed evenly to obtain the initial sol-gel mixture. Crystallize for 8 hours. The pH value of the crystal slurry was adjusted to neutral with 0.5mol / L urea, and 4.28g ammonium molybdate, 59.7g copper nitrate and 6.3g cerium nitrate were added, and the ion exchange reaction was carried out for 8h. After the reaction is completed, the above slurry is added to a flocculant for precipitation, filtered, washed, dried, extruded, and the filtered liquid is reused for the next reaction. After drying at 150°C for 2 hours and calcining at 500°C for 6 hours, a regenerable adsorption dechlorination catalyst Cat1 was obtained.

Embodiment 2

[0021] 179g of aluminum sol, 10g of silica sol, 44.6g of magnesium chloride, 15.1g of nickel nitrate, 2.5g of cetyltrimethylammonium bromide and 300g of water were stirred for 10 hours and mixed evenly to obtain the initial sol-gel mixture, and the initial sol-gel The glue material was moved into a synthesis kettle and sealed, and crystallized at 150 for 8 hours. The pH value of the crystal slurry was adjusted to neutral with 0.5mol / L urea, and 6.26g of ammonium molybdate, 59.7g of copper nitrate and 6.3g of cerium nitrate were added, and the ion exchange reaction was carried out for 28h. After the reaction is completed, the above slurry is added to a flocculant for precipitation, filtered, washed, dried, extruded, and the filtered liquid is reused for the next reaction. After drying at 120°C for 4 hours and calcining at 500°C for 6 hours, a regenerable adsorption dechlorination catalyst Cat2 was obtained.

Embodiment 3

[0023] 192.5g of aluminum sol, 23g of silica sol, 33g of magnesium chloride, 26.6g of nickel nitrate, 2.5g of tetraethylammonium bromide and 300g of water were stirred for 6 hours and mixed evenly to obtain the initial sol-gel mixture, and the initial sol-gel material was transferred to the synthetic The kettle was sealed and crystallized at 220°C for 20 hours. Use 0.5mol / L urea to adjust the pH value of the crystal slurry to neutral, add 4.28g ammonium molybdate, 48.7g copper nitrate and 5.1g cerium nitrate, and carry out ion exchange reaction for 20h. After the reaction is completed, the above slurry is added to a flocculant for precipitation, filtered, washed, dried, extruded, and the filtered liquid is reused for the next reaction. After drying at 120°C for 3 hours and calcining at 600°C for 5 hours, a regenerable adsorption dechlorination catalyst Cat3 was obtained.

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 discloses a regenerable catalyst for removing organic chlorine and a preparation method thereof. The catalyst uses a composite oxide synthesized from an aluminum source, a silicon source and a magnesium source as a carrier, and uses Ni, Mo, Cu and Ce as active components. Based on the mass percentage of the catalyst, the NiO content of its active components is 6.2-15.6%, the CuO content is 16.1-25.4%, and the MoO content is 6.2-15.6%. 3 Content is 1.7‑4.6%, CeO 2 The content is 1.5-2.5%, and the rest is the carrier; the catalyst uses composite oxide as the carrier, which can better disperse active metals, has an ordered pore structure, specific pore diameter, and large pore volume. It can effectively remove organic chlorine, prevent subsequent devices from being corroded by inorganic chlorine, and improve the quality of oil products. At the same time, the catalyst can be continuously regenerated, reducing startup and shutdown time and reducing production costs.

Description

technical field [0001] The invention relates to a reproducible catalyst for removing organic chlorides in chlorinated naphtha and a preparation method thereof, belonging to the field of oil refining. Background technique [0002] In the late stage of oilfield exploitation, in order to increase the output of the oilfield, some additives containing organic chlorides will be used to increase the oil recovery rate, resulting in high chloride content in some crude oil, and the chlorine-containing compounds are mainly enriched in naphtha. Chlorides in naphtha are mainly chlorinated alkanes, such as chloroform, dichloromethane, trichloroethane, etc. The current crude oil desalting process can only remove the inorganic chlorides in the crude oil, but cannot remove the organic chlorides. Naphtha is used as a raw material for ethylene production and catalytic reforming. The organic chlorides in naphtha do not cause corrosion to equipment, but during the pre-hydrogenation process, org...

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): B01J23/887B01J35/10C10G31/00
CPCC10G31/00B01J23/002B01J23/8871B01J23/8872B01J2523/00C10G2300/201B01J35/615B01J35/617B01J35/633B01J35/635B01J35/647B01J2523/17B01J2523/31B01J2523/3712B01J2523/41B01J2523/68B01J2523/847B01J2523/22
Inventor 夏大寒张先茂王泽吴阳春陈宗杰王栋斌周正瞿玖王瑜王国兴
Owner WUHAN KELIN FINE CHEM
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