Catalyst applied to dehydrogenation of light alkane and preparation method thereof

A technology of low-carbon alkanes and catalysts, which is applied in the field of catalysts and preparations for dehydrogenation of low-carbon alkanes, and can solve the problems of low conversion rate of low-carbon alkanes dehydrogenation

Inactive Publication Date: 2016-05-25
贺东光 +4
View PDF5 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of catalyst for low-carbon alkane dehydrogenation in order to overcome the low defect of low-carbon alkane dehydrogenation conversion rate in the above-mentioned prior art

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
  • Catalyst applied to dehydrogenation of light alkane and preparation method thereof
  • Catalyst applied to dehydrogenation of light alkane and preparation method thereof
  • Catalyst applied to dehydrogenation of light alkane and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Weigh 52.65 kg of copper nitrate, 2.15 kg of potassium nitrate, 0.07 kg of ferric iron phosphate, and 0.0027 kg of gallium nitrate, add them to 100 liters of deionized water, then add 88.899 kg of alumina carrier, adjust the pH value of the solution to 3.5, then soaked in a water bath at 80°C for 1 hour, took out the sample and filtered it, dried it in an oven at 120°C for 8 hours, then put the sample into a muffle furnace and roasted it at 800°C for 4 hours to obtain the required catalyst . Adjust the flow rate of propane gas through the mass flow meter, enter the preheating zone for mixing, and then enter the reaction zone. The preheating zone and reaction zone of the reactor are heated by electric heating wires to reach the predetermined temperature. The reactor is a fixed fluidized bed , Catalyst reserves 8 kg. After the reaction gas passes through the condensation tank, it enters the gas chromatography to analyze its composition.

[0028] The catalyst evaluation ...

Embodiment 2

[0030] Weigh 52.65 kg of copper nitrate, 2.15 kg of potassium nitrate, 0.07 kg of ferric phosphate, and 2.7 kg of gallium nitrate, add them to 100 liters of deionized water, then add 86.5 kg of alumina carrier, adjust the pH value of the solution to 3.5 with 2.5% ammonia water , and then immersed in a water bath at 80°C for 1 hour, the sample was taken out and filtered, dried in an oven at 120°C for 8 hours, and then put into a muffle furnace and calcined at 800°C for 4 hours to obtain the desired catalyst. Evaluation conditions are the same as in Example 1, and the results are shown in Table 1.

Embodiment 3

[0032] Weigh 52.65 kg of copper nitrate, 2.15 kg of potassium nitrate, 0.07 kg of ferric phosphate, and 0.027 kg of gallium nitrate, add them to 100 liters of deionized water, then add 87.499 kg of alumina carrier, adjust the pH value of the solution to 3.5 with 2.5% ammonia water , and then immersed in a water bath at 80°C for 1 hour, the sample was taken out and filtered, dried in an oven at 120°C for 8 hours, and then put into a muffle furnace and calcined at 800°C for 4 hours to obtain the desired catalyst. Evaluation conditions are the same as in Example 1, and the results are shown in Table 1.

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 catalyst applied to dehydrogenation of light alkane and a preparation method thereof. The catalyst is prepared from the following components in parts by weight: 1-30 parts of Cu element or oxides thereof, 0.1-5 parts of alkali metal oxides or alkaline earth metal oxides, 0.001-1 part of group VIII elements in the periodic table of elements or oxides thereof, 0.001-1 part of group IIIA elements in the periodic table of elements or oxides thereof, and 54-99 parts of Al2O3 or SiO2. Compared with the prior art, the catalyst has a higher alkane conversion rate which can be up to 60% at low reaction temperature, and high higher olefin selectivity, which is more than 90%, and achieves better technical effect.

Description

technical field [0001] The invention relates to a dehydrogenation catalyst, in particular to a catalyst for dehydrogenation of low-carbon alkanes and a preparation method thereof. Background technique [0002] Low-carbon olefins such as ethylene, propylene and isobutylene are one of the most important organic raw materials in the field of petrochemical industry. Among them, ethylene is mainly used to produce polyethylene, ethylene-propylene rubber, polyvinyl chloride, etc., and propylene is mainly used to produce polypropylene, acrylonitrile, Propylene oxide, etc., isobutylene is mainly used in butyl rubber, polyisobutylene, etc. At present, ethylene, propylene and isobutylene mainly come from naphtha cracking and refinery by-products, which cannot meet the huge market demand in my country. With the development of coal chemical industry, especially the realization of MTO, MTFe and other processes, in addition to obtaining low-carbon olefins, more low-carbon alkanes are also...

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): B01J23/825B01J23/78
CPCB01J23/002B01J23/78B01J23/825B01J2523/00B01J2523/17B01J2523/842B01J2523/31B01J2523/32B01J2523/13B01J2523/12B01J2523/11B01J2523/14B01J2523/15
Inventor 贺东光廖锡文朱春霞肖永莲刘凯
Owner 贺东光
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