A process for a catalytic reforming system, the process comprising controlling an amount of aromatic hydrocarbon fed to a sulfur removal system in the catalytic reforming system such that a temperature of a reduced sulfur stream flowing from the sulfur removal system is higher than a temperature of a stream which is fed to the sulfur removal system, due to a heat of reaction generated in the sulfur removal system by converting at least a portion of the aromatic hydrocarbon to aliphatic hydrocarbons. A process for a catalytic reforming system, the process comprising feeding an effective amount of aromatic hydrocarbons to a sulfur removal system of the catalytic reforming system such that a heat duty of a first furnace of a plurality of reactor-furnace pairs connected in series in the catalytic reforming system is reduced relative to operation of the sulfur removal system without the effective amount of aromatic hydrocarbons.

A process for a catalytic reforming system, the process comprising controlling an amount of aromatic hydrocarbon fed to a sulfur removal system in the catalytic reforming system such that a temperature of a reduced sulfur stream flowing from the sulfur removal system is higher than a temperature of a stream which is fed to the sulfur removal system, due to a heat of reaction generated in the sulfur removal system by converting at least a portion of the aromatic hydrocarbon to aliphatic hydrocarbons. A process for a catalytic reforming system, the process comprising feeding an effective amount of aromatic hydrocarbons to a sulfur removal system of the catalytic reforming system such that a heat duty of a first furnace of a plurality of reactor-furnace pairs connected in series in the catalytic reforming system is reduced relative to operation of the sulfur removal system without the effective amount of aromatic hydrocarbons.

An integrated process for producing para-xylenes may include catalytically reforming a naphtha feed stream; separating the reformate stream into a C.sub.1-C.sub.7 hydrocarbon stream and a C.sub.8+ hydrocarbon stream; exposing the C.sub.1-C.sub.7 hydrocarbon stream to a first solvent in a solvent extraction unit to form a non-aromatic hydrocarbon stream and an aromatics stream; upgrading the aromatics stream to form a toluene-rich transalkylation feed stream; separating the C.sub.8+ hydrocarbon stream into a C.sub.9+ hydrocarbon stream, a para-xylene stream and a xylene isomer stream; dealkylating the C.sub.9+ hydrocarbon stream; separating the dealkylation product stream into an additional xylene stream and a tri-methyl benzene rich stream; and upgrading the toluene-rich transalkylation feed stream and the tri-methyl benzene rich stream with a hydrogen stream to produce an alkyl-benzene stream and additional xylene stream, wherein a ratio by weight of the toluene-rich transalkylation feed stream to the tri-methylbenzene rich stream is from 0.3 to 3.

A process is presented for recovering the components for a gasoline blending pool to meet the E70 specifications. The process includes the separation of the naphtha feedstock into a light naphtha stream and a heavy naphtha stream. The process further includes separating the light naphtha stream to recovery high quality non-normal hydrocarbons having normal boiling points above 70 C., and to separate for adding to the feed to the reforming unit, hydrocarbons that have lower boiling points.

Processes and apparatuses are disclosed for treating a naphtha stream from a FCC unit comprising passing the naphtha stream to a naphtha splitter column to provide a light naphtha stream and a heavy naphtha stream. The light naphtha stream is reacted in a mercaptan oxidation reactor to provide a demercaptanized naphtha stream. The demercaptanized naphtha stream is stripped in a light stripper column to provide a treated light naphtha stream and a bottoms stream.

Processes and apparatuses are disclosed for treating a naphtha stream from a FCC unit comprising passing the naphtha stream to a naphtha splitter column to provide a light naphtha stream and a heavy naphtha stream. The light naphtha stream is reacted in a mercaptan oxidation reactor to provide a demercaptanized naphtha stream. The demercaptanized naphtha stream is stripped in a light stripper column to provide a treated light naphtha stream and a bottoms stream.

An integrated process for producing para-xylenes may include catalytically reforming a naphtha feed stream to form a reformate stream; separating the reformate stream into a C.sub.1-C.sub.7 hydrocarbon stream and a C.sub.8+ hydrocarbon stream; exposing the C.sub.1-C.sub.7 hydrocarbon stream to a first solvent in a solvent extraction unit to form a non-aromatic hydrocarbon stream and a C.sub.6-C.sub.7 aromatics stream; separating the C.sub.6-C.sub.7 aromatics stream into at least a toluene feed stream; separating the C.sub.8+ hydrocarbon stream into a C.sub.9+ hydrocarbon stream and a xylene stream; separating the xylene stream in a p-xylene separation unit to form the para-xylene stream and a xylene isomer stream; isomerizing the xylene isomer stream to produce a para-xylene rich stream; and upgrading the toluene feed stream and the C.sub.9+ hydrocarbon stream in a hybrid dealkylation/transalkylation unit with a hydrogen stream and a hybrid transalkylation/dealkylation catalyst to produce a product stream including para-xylenes.

An integrated process for producing para-xylenes may include catalytically reforming a naphtha feed stream to form a reformate stream; separating the reformate stream into a C.sub.1-C.sub.7 hydrocarbon stream and a C.sub.8+ hydrocarbon stream; exposing the C.sub.1-C.sub.7 hydrocarbon stream to a first solvent in a solvent extraction unit to form a non-aromatic hydrocarbon stream and a C.sub.6-C.sub.7 aromatics stream; separating the C.sub.6-C.sub.7 aromatics stream into at least a toluene feed stream; separating the C.sub.8+ hydrocarbon stream into a C.sub.9+ hydrocarbon stream and a xylene stream; separating the xylene stream in a p-xylene separation unit to form the para-xylene stream and a xylene isomer stream; isomerizing the xylene isomer stream to produce a para-xylene rich stream; and upgrading the toluene feed stream and the C.sub.9+ hydrocarbon stream in a hybrid dealkylation/transalkylation unit with a hydrogen stream and a hybrid transalkylation/dealkylation catalyst to produce a product stream including para-xylenes.

A method and associated system for producing refined hydrocarbons from waste plastics. The method includes: pretreating waste plastics; producing pyrolysis gas by introducing the waste plastics pretreated in the pretreatment process into a pyrolysis reactor; producing in a lightening process pyrolysis oil by introducing the pyrolysis gas into a hot filter; and isomerizing the pyrolysis oil, wherein a liquid condensed in the hot filter is re-introduced into the pyrolysis reactor. The system produces refined hydrocarbons from the waste plastics.

A method and associated system for producing refined hydrocarbons from waste plastics. The method includes: pretreating waste plastics; producing pyrolysis gas by introducing the waste plastics pretreated in the pretreatment process into a pyrolysis reactor; producing in a lightening process pyrolysis oil by introducing the pyrolysis gas into a hot filter; and isomerizing the pyrolysis oil, wherein a liquid condensed in the hot filter is re-introduced into the pyrolysis reactor. The system produces refined hydrocarbons from the waste plastics.