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Catalytic process for producing ethylene and carbon monoxide mixtures from ethane

A carbon monoxide and oxide technology, which is applied in the preparation of carbon compound catalysts, carbon monoxide and organic compounds, etc., can solve the problems of expensive raw materials and high cost of ethylene

Inactive Publication Date: 2009-03-25
ROHM & HAAS CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high cost of these methods of producing ethylene, ethylene remains a relatively expensive raw material

Method used

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  • Catalytic process for producing ethylene and carbon monoxide mixtures from ethane
  • Catalytic process for producing ethylene and carbon monoxide mixtures from ethane
  • Catalytic process for producing ethylene and carbon monoxide mixtures from ethane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0027] The catalyst was prepared by precipitating hydrated iron oxide onto limestone particles from a 40% (w / v) ferric chloride solution. The solution was allowed to stand in the presence of limestone before adding the base. Precipitation was brought about by adding 10% NaOH to bring the pH to 5-7. The coated substrate was then calcined at 300°C for 1 hour in a 90% nitrogen / 10% oxygen flow. Catalyst preparation amount and characteristic are as follows:

[0028] Granularity

Micron

limestone

gram

water, grams

FeCl 3 solution,

mL

min<

Alkali added

10%

NaOH,

mL pH

washed,

mL

%Fe,

dry weight

425-710 130 130 100 80 75 7.02 5400 4.5 425-710 130 130 260 20 225 6.61 6500 5.4

[0029] By treating CaCO with 6 mL of a homogeneous solution of iron(III) nitrate (nonahydrate, Fe content about 13% by weight) 3 (20 g, ACS reagent, purity 99%+, measured pore volume about 0.60 cm 3 gr...

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Abstract

The present invention relates to a method for producing a mixture of ethylene and carbon monoxide from ethane, by contacting ethane and carbon dioxide and a catalyst at a temperature of at least 600 DEG C. The catalyst comprises iron oxide supported on an inorganic material to produce at least one of the ethylene and carbon monoxide.

Description

technical field [0001] This invention relates to catalytic processes for the preparation of ethylene and carbon monoxide mixtures from ethane and carbon dioxide, and to various integrated processes for the preparation of alkyl propionates or methacrylates from ethane and carbon dioxide. Background technique [0002] A mixture of ethylene and carbon monoxide is used as a starting material for the homologation of ethylene to produce propionic acid derivatives. For example, carbonylation of ethylene to produce methyl propionate followed by condensation with formaldehyde is an industrially important route to methyl methacrylate. For example, US Patent No. 6,284,919 explains a process for the carbonylation of ethylene to produce methyl propionate. In the first step of the process, ethylene, CO and methanol feeds are converted to methyl propionate. The ethylene and CO feeds used are typically from conventional sources such as steam cracking and steam reforming of methane. Howev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C11/04C07C5/42C01B31/18B01J23/78C07C69/54C07C69/22C07C47/02C07C47/21C01B32/40
CPCC07C5/42C07C67/38C07C45/75B01J37/03B01J37/0201B01J23/78C07C2523/745C07C67/343Y02P20/52C07C11/04C07C47/22C07C69/54C07C69/24B01J23/70C07C5/48
Inventor R·M·巴那瓦里S·汉J·A·特雷霍A·本德里D·J·马特奈克
Owner ROHM & HAAS CO