- PII
- S3034541325040063-1
- DOI
- 10.7868/S3034541325040063
- Publication type
- Article
- Status
- Published
- Authors
- Volume/ Edition
- Volume 66 / Issue number 4
- Pages
- 308-326
- Abstract
- NiCuAlO (x = 0.1–0.5) catalysts, obtained by co-precipitation method from nickel, copper and aluminum water nitrate solution with followed drying and calcination in air at 750°C were synthesized. They are characterized by a spinel structure, in which nickel and copper ions are stabilized. Reducing of obtained catalysts in a hydrogen-containing medium and further work in the dry reforming of methane reaction leads to formation of highly dispersed particles of Ni–Cu alloy. Up to 28 wt % of active phase are formed and stabilized on the spinel surface. The investigation of the influence of catalyst composition on their activity in the DRM reaction accompanied the long tests on stream showed that the NiCuAlO catalyst demonstrates highest activity. At 750°C and contact time of τ = 30 ms, total convertion of CH is 89%, the CO conversion is 86%, the hydrogen yield is 48%, the H/CO ratio is 0.75. This catalyst is stably working in the DRM reaction mixture for 20 h. The regularities of the formation of active state for this catalyst were studied by the XRD method .
- Keywords
- синтез-газ метан CO никельзамещенные алюминаты меди катализатор сплав Ni–Cu углекислотная конверсия метана
- Date of publication
- 01.04.2025
- Year of publication
- 2025
- Number of purchasers
- 0
- Views
- 23
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