Removal of sulfur compounds from hydrocarbon feedstreams using cobalt containing adsorbents in the substantial absence of hydrogen
First Claim
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1. A process for removing sulfur compounds from sulfur compound-containing hydrocarbon streams boiling in the range of about 10°
- C. to about 600°
C., which process comprises contacting the sulfur compound-containing hydrocarbon stream, in the substantial absence of added hydrogen, with an adsorbent comprised of Co and at least one Group VI metal selected from Mo and W on an inorganic refractory support under conditions that include temperatures up to about 150°
C.
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Abstract
A process for removing sulfur compounds from hydrocarbon feedstreams, particularly those boiling in the naphtha range, by contacting the feedstream with an adsorbent comprised of cobalt and one or more Group VI metals selected from molybdenum and tungsten on a refractory support. This invention also relates to a process wherein a naphtha feedstream is first subjected to selective hydrodesulfurization to remove sulfur but not appreciably saturate olefins. A product stream is produced containing mercaptans that are removed by use of the cobalt-containing adsorbents of the present invention.
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29 Claims
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1. A process for removing sulfur compounds from sulfur compound-containing hydrocarbon streams boiling in the range of about 10°
- C. to about 600°
C., which process comprises contacting the sulfur compound-containing hydrocarbon stream, in the substantial absence of added hydrogen, with an adsorbent comprised of Co and at least one Group VI metal selected from Mo and W on an inorganic refractory support under conditions that include temperatures up to about 150°
C. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
- C. to about 600°
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18. A process for removing sulfur compounds from sulfur compound-containing naphtha streams boiling in the range of about 10°
- C. to about 230°
C., which process comprises contacting the sulfur compound-containing naphtha stream, in the substantial absence of added hydrogen, with an adsorbent comprised of Co and at least one Group VI metal selected from Mo and W on an inorganic refractory support under conditions that include temperatures from about 10°
C. to about 150°
C. - View Dependent Claims (19, 20, 21, 22)
- C. to about 230°
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23. A process for removing sulfur compounds from sulfur compound-containing naphtha streams boiling in the range of about 10°
- C. to about 230°
C., which process comprises contacting the sulfur compound-containing naphtha stream, in the substantial absence of added hydrogen, with an adsorbent comprised of Co and at least one Group VI metal selected from Mo and W on an inorganic refractory support under conditions that include temperatures from about 10°
C. to about 150°
C., wherein said adsorbent was preconditioned with hydrogen. - View Dependent Claims (24, 25, 26, 27)
- C. to about 230°
-
28. A process for removing sulfur from sulfur compound-containing naphtha streams boiling in the range of about 10°
- C. to about 230°
C., which process comprises;a) hydrodesulfurizing said naphtha stream, which contains olefins and sulfur in the form of organic sulfur compounds, to form a hydrodesulfurization effluent at an initial temperature, the hydrodesulfurization effluent comprising a hot mixture of sulfur reduced naphtha at an initial pressure, H2S and mercaptans, and then b) contacting said mixture with an adsorbent comprised of Co and at least one Group VI metal selected from Mo and W on an inorganic support under conditions that include temperatures up to about 150°
C., in the substantial absence of added hydrogen.- View Dependent Claims (29)
- C. to about 230°
Specification