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US 8,940,254 B2Granted
Apparatus for recovering hydroprocessed hydrocarbons with two strippers
AssigneeUop LLC
InventorsRichard K. Hoehn, David M. Bowman, Xin X. Zhu
Life of this patent
Estimating the term…
Abstract
An apparatus is disclosed for recovering hydroprocessing effluent from a hydroprocessing unit utilizing a hot stripper and a cold stripper. Only the hot hydroprocessing effluent is heated in a fired heater prior to product fractionation, resulting in substantial operating and capital savings.
Claims17
A hydroprocessing apparatus comprising:
- a hydroprocessing reactor;
- a cold stripper in communication with the hydroprocessing reactor for stripping a relatively cold hydroprocessing effluent stream;
- a first stripping media line in communication with the cold stripper for stripping the cold hydroprocessing effluent stream;
- a hot stripper in communication with the hydroprocessing reactor for stripping a relatively hot hydroprocessing effluent stream;
- a second stripping media line in communication with the hot stripper for stripping the hot hydroprocessing effluent stream;
- and
- one or more separators comprising at least one of a hot separator and a cold separator in communication with said hydroprocessing reactor for separating a hydroprocessing effluent stream from said hydroprocessing reactor into said cold hydroprocessing effluent stream and said hot hydroprocessing effluent stream;
- wherein the cold stripper is in downstream communication with the cold separator via a line comprising said cold hydroprocessing effluent stream from the bottom of the cold separator and a bottoms line between the cold stripper and a product fractionation column.
5 more elements
A hydroprocessing product recovery apparatus for processing a cold hydroprocessing effluent stream and a hot hydroprocessing effluent stream comprising:
- a cold stripper in communication with the cold hydroprocessing effluent line for stripping the cold hydroprocessing effluent stream;
- a first stripping media line in communication with the cold stripper for stripping the cold hydroprocessing effluent stream;
- a hot stripper in communication with the hot hydroprocessing effluent line for stripping the hot hydroprocessing effluent stream;
- a second stripping media line in communication with the hot stripper for stripping the hot hydroprocessing effluent stream;
- one or more separators comprising at least one of a hot separator and a cold separator for separating a hydroprocessing effluent stream into said cold hydroprocessing effluent stream and said hot hydroprocessing effluent stream;
- wherein the cold stripper is in downstream communication with the cold separator via a line comprising said cold hydroprocessing effluent stream from the bottom of the cold separator;
- and
- a product fractionation column in communication with the cold stripper and the hot stripper for separating stripped streams into product streams and a bottoms line between the cold stripper and said product fractionation column.
5 more elements
A cold stripper and a hot stripper comprising:
- a cold stripper in communication with a hydroprocessing reactor for stripping relatively cold hydroprocessing effluent stream;
- a first stripping media line in communication with the cold stripper for stripping the cold hydroprocessing effluent stream;
- a hot stripper in communication with the hydroprocessing reactor for stripping relatively hot hydroprocessing effluent stream;
- a second stripping media line in communication with the hot stripper for stripping the hot hydroprocessing effluent stream;
- and
- one or more separators comprising at least one of a hot separator and a cold separator in communication with said hydroprocessing reactor for separating a hydroprocessing effluent stream from said hydroprocessing reactor into said cold hydroprocessing effluent stream and said hot hydroprocessing effluent stream;
- wherein the cold stripper is in downstream communication with the cold separator via a line comprising said cold hydroprocessing effluent stream from the bottom of the cold separator and a bottoms line between the cold stripper and a product fractionation column.
4 more elements
Dependencies are inferred from the claim text.