# US 8,540,949 B2 · Apparatus for hydroprocessing hydrocarbons > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,540,949 B2 - Document ID: US8540949B2 - Status: Granted - Kind: B2 - Application number: 13/168,078 - Filed: 2011-06-24 - Published: 2012-11-22 - Granted: 2013-09-24 - Earliest claimed: 2011-05-17 - Assignees: Uop LLC - Applicants: Andrew P. Wieber; Joao J. da Silva Ferreira Alves - Inventors: Andrew P. Wieber; Joao J. da Silva Ferreira Alves - Web page: https://patentgrep.com/patent/US8540949B2 ## CPC - C10G 65/14: plural parallel stages only - C10G 65/12: including cracking steps and other hydrotreatment steps - C10G 65/16: including only refining steps - C10G 65/18: including only cracking steps - C10G 2300/4081: Recycling aspects - C10G 2300/42: Hydrogen of special source or of special composition - C10G: CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION (cracking to hydrogen or synthesis gas C01B; cracking or pyrolysis of hydrocarbon gases to individual hydrocarbons or mixtures thereof of definite or specified constitution C07C; cracking to cokes C10B); RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES ## Abstract An apparatus and process is disclosed for hydroprocessing hydrocarbon feed in a hydroprocessing unit and hydrotreating a second hydrocarbon. A warm separator sends vaporous hydrotreating effluent to be flashed with liquid hydroprocessing effluent to produce a vapor flash overhead that can be recycled to the hydrotreating unit to provide hydrogen requirements. ## Claims ### Claim 1 An apparatus for hydroprocessing hydrocarbons comprising: a hydrocracking reactor in communication with a first hydrogen line and a first hydrocarbon feed line for hydrocracking a hydrocarbon feed stream to lower boiling hydrocarbons transported in a hydrocracking effluent line; a cold separator in communication with the hydrocracking reactor for providing a vaporous hydrocracking effluent stream comprising hydrogen in an overhead line and a liquid hydrocracking effluent stream in a bottoms line; a hydrotreating reactor in communication with a second hydrogen line for hydrotreating a second hydrocarbon feed stream to produce a hydrotreating effluent stream; a warm separator in communication with the hydrotreating reactor for separating the hydrotreating effluent stream into a vaporous hydrotreating effluent stream comprising hydrogen in a warm overhead line and a liquid hydrotreating effluent stream in a warm bottoms line, wherein the bottoms line of the cold separator is joined with the warm overhead line of the warm separator; and a fractionation section in downstream communication with the hydrocracking reactor for fractionating the hydrocracking effluent stream and the hydrotreating reactor being in downstream communication with the fractionation section. ### Claim 2 (depends on 1) The apparatus of claim 1 wherein said first hydrogen line is in downstream communication with two compressor stages. ### Claim 3 (depends on 1) The apparatus of claim 1 further comprising a diesel line carrying a diesel stream produced by said fractionation section and said second hydrocarbon feed line being the diesel line. ### Claim 4 (depends on 1) The apparatus of claim 1 wherein said first hydrogen line is in communication with said overhead line of said cold separator. ### Claim 5 (depends on 1) The apparatus of claim 1 further comprising a supplemental hydrogen line in communication with said second hydrogen line. ### Claim 6 (depends on 1) The apparatus of claim 1 further comprising a hot separator in communication with the hydrocracking reactor for providing a vaporous hydrocarbonaceous stream in a hot overhead line and a liquid hydrocarbonaceous stream in a hot bottoms line and the cold separator in communication with the hot overhead line of the hot separator. ### Claim 7 (depends on 1) The apparatus of claim 1 further comprising a fractionation column in communication with the warm bottoms line of the warm separator for fractionating at least a portion of the liquid hydrotreating effluent stream to provide a low sulfur diesel stream. ### Claim 8 (depends on 1) The apparatus of claim 1 further comprising a cold flash drum in communication with the bottoms line of the cold separator, the cold flash drum having a flash overhead line for carrying a cold flash vapor stream and the cold flash drum having a flash bottoms line in communication with a fractionation column in the fractionation section. ### Claim 9 (depends on 8) The apparatus of claim 8 wherein said hydrotreating reactor is in communication with said overhead line of said cold flash drum. ### Claim 10 (depends on 9) The apparatus of claim 9 further comprising a recycle compressor in communication with said overhead line of said cold flash drum. ### Claim 11 (depends on 1) The apparatus of claim 1 further comprising a first compressor in communication with a make-up hydrogen line for compressing a make-up hydrogen stream to provide a first compressed make-up hydrogen stream in a first compressed make-up hydrogen line; a split in communication with said first compressor for splitting said first compressed make-up hydrogen stream into a first portion in a first split line and a second portion in a second split line; a second compressor in communication with said first split line for compressing said first portion of said first compressed make-up hydrogen stream to provide a second compressed make-up hydrogen stream in a second compressed make-up hydrogen line; said hydrocracking reactor in communication with said first split line; and said a hydrotreating reactor in communication with said second split line. ### Claim 12 An apparatus for producing diesel comprising: a hydrocracking reactor in communication with a first hydrogen line and a hydrocarbon feed line for hydrocracking a hydrocarbon feed stream to lower boiling hydrocarbons transported in a hydrocracking effluent line; a hydrotreating reactor in communication with a second hydrogen line for hydrotreating a diesel stream to produce low sulfur diesel in a hydrotreating effluent stream; a cold separator in communication with the hydrocracking reactor for providing a vaporous hydrocracking effluent stream comprising hydrogen in an overhead line and the liquid hydrocracking effluent stream in a bottoms line; and a warm separator in direct communication with the hydrotreating reactor for separating the hydrotreating effluent stream into a vaporous hydrotreating effluent stream comprising hydrogen in a warm overhead line and a liquid hydrotreating effluent stream in a warm bottoms line; wherein the bottoms line of the cold separator is in communication with the overhead line of the warm separator. ### Claim 13 (depends on 12) The apparatus of claim 12 further comprising a cold flash drum in communication with the bottoms line of the cold separator, the cold flash drum having a flash overhead line for carrying a cold flash vapor stream in communication with said hydrotreating reactor and the cold flash drum having a flash bottoms line in communication with a fractionation section. ### Claim 14 (depends on 13) The apparatus of claim 13 further comprising a recycle compressor in communication with said flash overhead line of said cold flash drum. ### Claim 15 (depends on 12) The apparatus of claim 12 further comprising a recycle compressor in communication with said overhead line of said cold separator. ### Claim 16 (depends on 12) The apparatus of claim 12 further comprising a first compressor in communication with a make-up hydrogen line for compressing a make-up hydrogen stream to provide a first compressed make-up hydrogen stream in a first compressed make-up hydrogen line; a split in communication with said first compressor for splitting said first compressed make-up hydrogen stream into a first portion in a first split line and a second portion in a second split line; a second compressor in communication with said first split line for compressing said first portion of said first compressed make-up hydrogen stream to provide a second compressed make-up hydrogen stream in a second compressed make-up hydrogen line; said hydrocracking reactor in communication with said first split line; and said a hydrotreating reactor in communication with said second split line. ### Claim 17 An apparatus for producing diesel comprising: a hydrocracking reactor in communication with a first hydrogen line and a hydrocarbon feed line for hydrocracking a hydrocarbon feed stream to lower boiling hydrocarbons transported in a hydrocracking effluent stream line; a hydrotreating reactor in communication with a second hydrogen line and the hydrocracking reactor for hydrotreating a diesel stream to produce low sulfur diesel in a hydrotreating effluent stream; a cold separator in communication with the hydrocracking reactor for providing a vaporous hydrocracking effluent stream comprising hydrogen in an overhead line and a liquid hydrocracking effluent stream in a bottoms line, wherein said hydrocracking reactor is in communication with said overhead line of said cold separator; a warm separator in communication with the hydrotreating reactor for separating the hydrotreating effluent stream into a vaporous hydrotreating effluent stream comprising hydrogen in a warm overhead line and a liquid hydrotreating effluent stream in a warm bottoms line; and a cold flash drum in communication with the warm separator, the cold flash drum having a flash overhead line for carrying a cold flash vapor stream in communication with said hydrotreating reactor and the cold flash drum having a flash bottoms line in communication with a fractionation section, wherein the hydrotreating reactor is in downstream communication with the fractionation section via a diesel line carrying the diesel stream produced by said fractionation section. ### Claim 18 (depends on 17) The apparatus of claim 17 wherein said cold flash drum is in communication with a warm overhead line of said warm separator and said bottoms line of said cold separator.