SU1416171A1 - Catalyst for hydrating carbon oxide till methane is obtained - Google Patents

Abstract

The invention relates to catalytic chemistry, in particular a catalyst for the hydrogenation of CO to methane, which can be used to purify industrial gases. The catalyst based on bentonite clay contains 3.25-6.5 wt.% Nickel oxide and has a better activity than in the known case. Thus, the degree of CO conversion at 150 ° C is 99.93% versus 99.4% while maintaining activity over 900 hours versus 250 hours. Table 1.

Description

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This invention relates to catalysts for the hydrogenation of carbon monoxide; yes to methane and can be used in chemical industry for

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purification from carbon monoxide.

The aim of the invention is to increase the activity of the catalyst due to the content of the new carrier.

An example. 29 g of Ni (NO, - dissolved in water, mixed with 92.6 calcined bentonite clay, I have the following composition, wt.%: SiO | 67.00; 15. 15.80;, 4.27; iMgO 3, 45; CaO 1.90; TiO 0.23; JNa, + 1.20, dried at 100 ° C for 1 hour, calcined at 400 ° C for 4 hours. The resulting catalyst has the following composition, wt.%: nickel oxide 7.4; bentonite clay 92.6.

The catalytic activity is checked in a laboratory setup at

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space velocity of 12000 hours, 150 ° C with carbonic oxide content - cold in the gas mixture 0.6%, Carbon monoxide conversion degree 99.93%, Other samples of catalysts

; prepared and tested as described above;

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The dependence of catalytic activity on the composition of the catalyst is shown in the table.

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As can be seen from the table, the proposed catalyst has an activity estimated by the degree of conversion of carbon monoxide of 99.93% versus 99.4% using the most active catalyst known. In addition, the proposed catalyst retains its activity after 900 hours of operation, when using the known after 250 hours, the degree of conversion is reduced to 95%,

Formula of invention

Catalyst for hydrogenation of carbon monoxide to methane containing nickel oxide on a carrier, characterized in that, in order to increase the activity, it contains bentonite clay as a carrier with the following content of components, wt.%:

Nickel oxide 3.25-6.50 Bentonite clay 93.50-96.75.

Claims (1)

Claim A catalyst for hydrogenation of carbon monoxide to methane containing nickel oxide on a support, characterized in that, in order to increase activity, it contains bentonite clay as a support in the following components, wt.%: Nickel oxide ‘3.25-6.50 30 Bentonite clay 93.50-96.75. The composition of the catalyst, wt.% The degree of conversion of carbon monoxide, N10 Bentonite clay A1 ₂ 0 _e sio _a 6.5 93.5 - - 99.93 5.2 94.8 - - 99.94 3.25 96.75 - - 99.93 1/5 98.05 - - 98.08 6.5 - 10 83.5 99,4