Process for hydrogenating a hydrocarbonaceous charge stock
Patent
·
OSTI ID:5393647
This patent describes a process for hydrogenating a hydrocarbonaceous charge stock containing nitrogen, sulfur of halogen-based impurities. The process comprises the steps of: contacting the hydrocarbonaceous charge stock in the presence of hydrogen with a hydrogenation catalyst in a hydrogenation reaction zone to simultaneously increase the hydrogen content of the hydrocarbonaceous charge stock and to generate at least one water-soluble inorganic nitrogen, sulfur on halogen-based compound produced from the reaction of the nitrogen, sulfur of halogen-based impurities in the hydrocarbonaceous charge stock with the hydrogen; contacting the reaction zone effluent containing hydrogenated hydrocarbon compounds and at least one water-soluble inorganic compound with a fresh aqueous scrubbing solution; introducing the resulting admixture of the reaction zone effluent and the aqueous scrubbing solution into a separation zone to provide a hydrogenated hydrocarbon stream and a spent aqueous scrubbing solution stream containing at least a portion of the water-soluble inorganic compound and trace quantities of hydrogenated hydrocarbon compounds; contacting the spent aqueous scrubbing solution stream with an adsorbent to remove the trace quantities of the hydrocarbon compounds from the aqueous scrubbing solution stream thereby providing an aqueous stream essentially free from hydrocarbon compounds; eluting the hydrocarbon compounds from spent adsorbent thereby regenerating the adsorbent; and passing the eluted hydrocarbon compounds which are removed from the spent adsorbent into the hydrogenation reaction zone.
- Assignee:
- UOP, Des Plaines, IL
- Patent Number(s):
- US 4849095
- Application Number:
- PPN: US 7047342A
- OSTI ID:
- 5393647
- Country of Publication:
- United States
- Language:
- English
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