Catalyst adsorbent for removal of sulfur compounds for fuel cells
AssigneeSud-Chemie AG
InventorsEric Jamie Weston, David C. Wolfe, Michael W. Balakos, Jon P. Wagner, Kevin G. Northway
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Abstract
A catalyst adsorbent for the desulfurization of a feed stream, preferably in a fuel cell, wherein the catalyst includes from about 30 percent to about 80 percent nickel or a nickel compound, from about 5 percent to about 45 percent silica as a carrier, from about 1 percent to about 10 percent alumina as a promoter and from about 0.01 percent to about 15 percent magnesia as a promoter. The invention also includes processes of manufacture of the catalyst adsorbent.
Claims25
A catalyst adsorbent for removal of sulfur compounds from gas and liquid feed streams for fuel cells, comprising nickel or a nickel compound deposited on a silica carrier and further comprising an alumina promoter and an alkaline earth compound promoter.
A catalyst adsorbent for removal of sulfur compounds from gas and liquid feed streams for fuel cells comprising
- a nickel or nickel compound deposited on a silica carrier and further comprising an alumina promoter and a magnesia promoter, wherein the nickel or nickel compound comprises from about 50 percent to about 80 percent by weight of the catalyst adsorbent, wherein the silica carrier comprises from about 10 percent to about 20 percent by weight of the catalyst adsorbent, wherein the alumina promoter comprises from about 2 percent to about 10 percent of the catalyst adsorbent by weight and wherein the magnesia promoter comprises from about 0.05 percent to about 10 percent by weight of the catalyst adsorbent, by weight.
A catalyst adsorbent for removal of sulfur compounds from gas and liquid feed streams for fuel cells comprising
- a nickel or nickel compound deposited on a silica carrier and further comprising alumina and magnesia promoters, wherein the nickel or nickel compound comprises from about 60 percent to about 70 percent, the silica carrier comprises from about 12 percent to about 16 percent, the alumina promoter comprises from about 5 percent to about 9 percent, and the magnesia promoter comprises from about 0.1 percent to about 1 percent of the catalyst adsorbent.
A process for the manufacture of a catalyst adsorbent for removal of sulfur compounds from gas and liquid feed streams for fuel cells comprising
- preparing a precursor catalyst adsorbent material comprising a nickel compound deposited on a silica carrier and further comprising an alumina promoter and an alkaline earth compound promoter,
- drying the precursor material at a temperature from about 180° C. to about 220° C., and
- reducing the dried material to produce the catalyst adsorbent.
A process for the manufacture of a catalyst adsorbent for removal of sulfur compounds from gas and liquid feed streams for fuel cells comprising
- preparing a precursor catalyst adsorbent material comprising a nickel compound deposited on a silica carrier and further comprising an alumina promoter and alkaline earth compound promoter,
- calcining the precursor material at a temperature from about 370° C. to about 485° C., and
- reducing the calcined material to produce the catalyst adsorbent.
Dependencies are inferred from the claim text.