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US 11,890,596 B2Granted
Coking resistant NiFeAl catalyst for partial oxidation of methane to synthesis gas
AssigneeUnited Arab Emirates University
InventorsAbbas Khaleel, Abdul Rasheed Pillantakath
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Abstract
A novel NiFeAl-based catalytic material was developed for the conversion of methane, the main constituent of natural gas, to synthesis gas, which is a mixture of H2 and CO in a H2/CO molar ratio of 2, through partial oxidation by air at reasonable temperatures.
Claims16
A catalyst for use in the conversion of methane into synthesis gas, wherein:
- (1) the catalyst comprises Ni supported over Fe-doped γ-Al2O3;
- (2) the Ni concentration in the catalyst is 8 to 12% of the catalyst by weight;
- (3) the Fe:Al molar ratio in the support is in the range of 0.030:0.970-0.050:0.950;
- and wherein the Fe-doped γ-Al2O3 support was first prepared and the Ni(NO3)2·6H2O was then added to the support.
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A method for the conversion of methane (CH4) into synthesis gas, comprising:
- preparing an Fe-doped γ-Al2O3 support;
- adding a nickel nitrate to the Fe-doped γ-Al2O3 support to form a catalyst;
- and
- bringing the methane gas into contact with the catalyst, wherein:
- (1) methane is converted into synthesis gas by partial oxidation;
- (2) efficiency of the process of conversion of methane into synthesis gas ranges from 85 to 100%;
- (3) selectivity of the process of conversion of methane into synthesis gas ranges from 95 to 100%;
- (4) an amount of carbon deposit produced in the process of conversion of methane into synthesis is minimal;
- and
- (5) the synthesis gas produced has a H2 to CO molar ratio of 2.
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Dependencies are inferred from the claim text.