Abstract: A system for processing plastic waste may include a feed line, a feed fractionator, a hydrotreater, a catalytic reforming unit, a heavy oil cracker, and a steam cracker. A pyrolyzed plastics feed is separated into light, medium, and heavy hydrocarbon streams. The hydrotreater removes sulfur, and the catalytic reforming unit produces a circular aromatic-rich stream. The heavy oil cracker generates cracked streams. The steam cracker produces a circular olefin stream from a cracked stream. A system for processing plastic waste may include the feed line, the feed fractionator, the hydrotreater, a medium hydrocarbon fractionator, the catalytic reforming unit, a full-range reforming unit, the heavy oil cracker, and the steam cracker. The medium hydrocarbon fractionator produces two hydrocarbon streams. The full-range naphtha reforming unit produces a second circular aromatic-rich stream.

Abstract: A hydrocarbon recovery system is integrated with a fluff transfer system. The hydrocarbon recovery system is configured for contacting a wet polymer fluff with a purge gas to provide a purged polymer fluff and an overhead stream, and separating a solids stream, a recovered hydrocarbon stream, and a recovered purge gas from the overhead stream. The polymer fluff transfer system is configured to receive the purged polymer fluff from the hydrocarbon recovery system and transport the purged polymer fluff in the fluff transfer system via circulation of a fluff transfer gas. The hydrocarbon recovery system and the fluff transfer system are integrated by utilizing at least a portion of the recovered purge gas from the hydrocarbon recovery system in the fluff transfer system as the fluff transfer gas and optionally utilizing fluff transfer gas from the fluff transfer system as the purge gas in the hydrocarbon recovery system.

Abstract: A hydrocarbon recovery system is integrated with a fluff transfer system. The hydrocarbon recovery system is configured for contacting a wet polymer fluff with a purge gas to provide a purged polymer fluff and an overhead stream, and separating a solids stream, a recovered hydrocarbon stream, and a recovered purge gas from the overhead stream. The polymer fluff transfer system is configured to receive the purged polymer fluff from the hydrocarbon recovery system and transport the purged polymer fluff in the fluff transfer system via circulation of a fluff transfer gas. The hydrocarbon recovery system and the fluff transfer system are integrated by utilizing fluff transfer gas from the fluff transfer system as the purge gas in the hydrocarbon recovery system and/or by utilizing at least a portion of the recovered purge gas from the hydrocarbon recovery system in the fluff transfer system as the fluff transfer gas.

Abstract: A system for processing plastic waste may include a feed line, a feed fractionator, a hydrotreater, a catalytic reforming unit, a heavy oil cracker, and a steam cracker. A pyrolyzed plastics feed is separated into light, medium, and heavy hydrocarbon streams. The hydrotreater removes sulfur, and the catalytic reforming unit produces a circular aromatic-rich stream. The heavy oil cracker generates cracked streams. The steam cracker produces a circular olefin stream from a cracked stream. A system for processing plastic waste may include the feed line, the feed fractionator, the hydrotreater, a medium hydrocarbon fractionator, the catalytic reforming unit, a full-range reforming unit, the heavy oil cracker, and the steam cracker. The medium hydrocarbon fractionator produces two hydrocarbon streams. The full-range naphtha reforming unit produces a second circular aromatic-rich stream.

Abstract: A hydrocarbon recovery system is integrated with a fluff transfer system. The hydrocarbon recovery system is configured for contacting a wet polymer fluff with a purge gas to provide a purged polymer fluff and an overhead stream, and separating a solids stream, a recovered hydrocarbon stream, and a recovered purge gas from the overhead stream. The polymer fluff transfer system is configured to receive the purged polymer fluff from the hydrocarbon recovery system and transport the purged polymer fluff in the fluff transfer system via circulation of a fluff transfer gas. The hydrocarbon recovery system and the fluff transfer system are integrated by utilizing fluff transfer gas from the fluff transfer system as the purge gas in the hydrocarbon recovery system and/or by utilizing at least a portion of the recovered purge gas from the hydrocarbon recovery system in the fluff transfer system as the fluff transfer gas.

Abstract: A system including a hydrocarbon recovery system integrated with a fluff transfer system, the hydrocarbon recovery system comprising a purge column, a separator, a purge gas-hydrocarbon recovery unit, and a waste gas outlet line, and the fluff transfer system comprising a fluff transfer blower, and an extruder feed tank fluidly connected with the fluff transfer blower via a fluff transfer blower outlet line and fluidly connected with the purge column. The hydrocarbon recovery system can be integrated with the fluff transfer system via a purge column fluff transfer gas inlet line fluidly connecting a purge gas inlet of the purge column with the fluff transfer blower outlet line, such that a portion of the fluff transfer gas in the fluff transfer blower outlet line is introduced into the purge column as purge gas. Make-up gas to the fluff transfer system can come from the hydrocarbon recovery system.

Abstract: A process and system for pre-polymerizing propylene are disclosed. A first catalyst suspension is formed by mixing catalyst particles with a hydrocarbon that is a saturated hydrocarbon or propylene. Various other catalyst components are added to the first catalyst suspension, and the first catalyst suspension is then pre-polymerized under pre-polymerization conditions to form a pre-polymerized catalyst suspension that is introduced to a polymerization reactor or a storage tank. The saturated hydrocarbon can be propane, mixed butanes, or mixture thereof.

Abstract: Disclosed are systems and processes for distributing reactor coolant flow to the cooling jackets of a loop slurry reactor, where the reactor coolant is used to control the temperature of the loop slurry reactor in olefin polymerization. Also disclosed are systems and processes for controlling the temperature of the reactor coolant that is used for cooling olefin polymerization reactors, which can be used in combination with traditional coolant distribution regimes and in combination with the coolant distribution systems and processes that are disclosed herein.

Abstract: A process and system for pre-polymerizing propylene are disclosed. A first catalyst suspension is formed by mixing catalyst particles with a hydrocarbon that is a saturated hydrocarbon or propylene. Various other catalyst components are added to the first catalyst suspension, and the first catalyst suspension is then pre-polymerized under pre-polymerization conditions to form a pre-polymerized catalyst suspension that is introduced to a polymerization reactor or a storage tank. The saturated hydrocarbon can be propane, mixed butanes, or mixture thereof.

Abstract: Disclosed herein are systems and processes involving the catalyzed cleavage reaction of dimethyl sulfide to methyl mercaptan. The catalyzed cleavage reaction can be a standalone system or process, or can be integrated with a methyl mercaptan production plant.

Abstract: Disclosed herein are systems and processes involving the catalyzed cleavage reaction of dimethyl sulfide to methyl mercaptan. The catalyzed cleavage reaction can be a standalone system or process, or can be integrated with a methyl mercaptan production plant.

Abstract: A method of processing one or more streams in a benzene production system comprising receiving a reactor effluent stream comprising benzene from an aromatization reactor system; introducing reactor effluent stream into a first separator to produce first gas stream and first liquid stream; splitting the first gas stream into first portion and second portion of first gas stream; introducing first portion of first gas stream into a first compressor to produce first compressed gas stream; introducing first compressed gas stream into a second separator to produce recycle gas stream comprising hydrogen and second liquid stream; recycling recycle gas stream to aromatization reactor system; introducing second portion of first gas stream into a second compressor to produce second compressed gas stream; introducing second compressed gas stream into a third separator to produce gas product stream comprising hydrogen and third liquid stream; and optionally recycling gas product stream to aromatization reactor system.

Abstract: Disclosed herein are systems and processes involving the catalyzed cleavage reaction of dimethyl sulfide to methyl mercaptan. The catalyzed cleavage reaction can be a standalone system or process, or can be integrated with a methyl mercaptan production plant.

Abstract: Disclosed herein are systems and processes involving the catalyzed cleavage reaction of dimethyl sulfide to methyl mercaptan. The catalyzed cleavage reaction can be a standalone system or process, or can be integrated with a methyl mercaptan production plant.