Unlock instant, AI-driven research and patent intelligence for your innovation.

Catalyst for direct production of low carbon olefins from syngas

A low-carbon olefin and synthesis gas technology, applied in physical/chemical process catalysts, heterogeneous catalyst chemical elements, hydrocarbon production from carbon oxides, etc., can solve the problem of low catalyst selectivity, avoid structural instability and Inactivation, selectivity-enhancing effect

Active Publication Date: 2020-08-07
CHINA PETROLEUM & CHEM CORP +1
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] One of the technical problems solved by the present invention is the problem of low selectivity of catalysts for the direct production of low-carbon olefins (C2-C4 olefins) from synthesis gas in the prior art, and a catalyst for direct production of low-carbon olefins from synthesis gas is provided, which is used for Direct production of low-carbon olefins from gas, with good selectivity for low-carbon olefins

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 for direct production of low carbon olefins from syngas
  • Catalyst for direct production of low carbon olefins from syngas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] Weigh equivalent to 50 grams of WO 3 Dissolve the ammonium metatungstate in water to obtain 100 grams of impregnating liquid, mix the impregnating liquid with 50 grams of alumina (20-60 mesh), steam at 80°C under stirring until no visible liquid is found, dry at 120°C for 12 hours, and dry at 550°C °C in an air atmosphere for 5 hours to obtain a catalyst.

[0072] The catalyst composition and evaluation results are shown in Table 1.

Embodiment 2

[0074] Weigh equivalent to 50 grams of WO 3 and MnO 2 Ammonium metatungstate and manganese nitrate (wherein the atomic ratio of W and Mn is 100:70) were dissolved in water to obtain 100 grams of impregnating solution, which was mixed with 50 grams of alumina (20-60 mesh) and stirred for 80 °C until there is no visible liquid, dried at 120 °C for 12 hours, and calcined in an air atmosphere at 550 °C for 5 hours to obtain the catalyst.

[0075] The catalyst composition and evaluation results are shown in Table 1.

Embodiment 3

[0080] Weigh equivalent to 50 grams of WO 3 Ammonium metatungstate of CuO and copper nitrate hexahydrate (where the atomic ratio of W and Cu is 100:70) are dissolved in water to obtain 100 grams of impregnation solution, and the impregnation solution is mixed with 50 grams of alumina (20-60 mesh) , steamed at 80°C under stirring until no visible liquid was found, dried at 120°C for 12 hours, and calcined at 550°C for 5 hours in an air atmosphere to obtain a catalyst.

[0081] The catalyst composition and evaluation 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 for directly preparing low carbon olefin by using synthesis gas, and mainly solves the problem that the selectivity of the catalyst when olefin is directly preparedby using the synthesis gas is low in the prior art. The catalyst for directly preparing the low carbon olefin by using the synthesis gas is prepared from, by weight, 20-80% of active components containing W and 20-80% of carriers. The above problem is better solved, and the catalyst for directly preparing the low carbon olefin by using the synthesis gas can be applied to industrial application ofdirectly preparing the low carbon olefin by using the synthesis gas.

Description

technical field [0001] The invention relates to a catalyst for directly producing low-carbon olefins from synthesis gas and a method for using the same. Background technique [0002] Low-carbon olefins (olefins with carbon atoms ≤ 4) represented by ethylene and propylene are the basic raw materials of the chemical industry. At present, the main raw materials of low-carbon olefins in the world are petroleum hydrocarbons, of which naphtha accounts for the majority, and there are Alkanes, hydrogenated diesel oil, some heavy oil, etc. At home and abroad, natural gas or light petroleum fractions are mostly used as raw materials, and low-carbon olefins are produced by steam cracking in ethylene complexes. Steam cracking is a large energy-consuming device in petrochemical industry, and it completely depends on non-renewable petroleum resources. With the increasing shortage of oil resources, it is urgent to find alternative resources. Therefore, the research work of producing ole...

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 Patents(China)
IPC IPC(8): B01J23/30B01J23/34B01J23/888B01J23/889C07C1/04C07C11/04C07C11/06
CPCB01J23/002B01J23/30B01J23/34B01J23/888B01J23/8892B01J2523/00C07C1/043C07C11/04C07C11/06B01J2523/31B01J2523/69B01J2523/72B01J2523/17B01J2523/27B01J2523/3712B01J2523/48Y02P20/52
Inventor 宋卫林陶跃武庞颖聪李剑锋
Owner CHINA PETROLEUM & CHEM CORP