The invention relates to a process and system arrangement to generate benzene, toluene and xylenes in a refinery. The process relies on recycling a C.sub.9+ aromatic bottoms stream from an aromatic recovery complex back to rejoining a hydrotreated naphtha stream as it enters a catalytic reformer. The aromatic bottoms can be further reacted through both the reformer and the subsequent aromatic recovery complex to transform to higher value compounds, thereby reducing waste or reducing bottoms' presence in gasoline pools.

An integrated process for conversion of a hydrocarbon stream comprising light naphtha to enhanced value products. The process includes passing the hydrocarbon stream through a first reactor, the first reactor being a catalytic bed reactor with a dual-function catalyst to simultaneously reform light naphtha to BTEX and crack light naphtha to ethane, propane, and butanes. Further, the process includes passing an effluent of the first reactor to a gas-liquid separating unit to generate a liquid stream and a gas stream, and passing the gas stream to a gas separator unit to remove hydrogen gas and methane and generate an enhanced gas stream. The process further includes passing the enhanced gas stream through a second reactor, the second reactor being a pyrolysis unit operated at steam cracking conditions to convert ethane, propane, and butanes in the enhanced gas stream to light. An associated system for performing the process is also provided wherein the integrated process does not include passage of a process stream to a separate and independent hydrocracking unit to crack light alkanes in the hydrocarbon stream to smaller alkanes.

Disclosed are systems and processes to produce aromatic and olefinic compounds by aromatization and thermal cracking of hydrocarbons.

The invention relates to a catalytic process for upgrading a renewable crude oil produced from biomass and/or waste comprising providing a renewable crude oil and pressurizing it to a pressure in the range in the range 60 to 150 bar, contacting the pressurized renewable crude oil with hydrogen and at least one heterogeneous catalyst contained in a first reaction zone at a weight based hourly space velocity (WHSV) in the range 0.1 to 2.0 h.sub.−1 and at a temperature in the range of 150° C. to 360° C., hereby providing a partially upgraded renewable crude oil, separating the partially upgraded renewable crude oil from the first reaction zone to a partially upgraded heavy renewable oil fraction, a partially upgraded light renewable oil fraction, a water stream and a process gas stream, introducing the separated and partially upgraded heavy renewable oil fraction and separated process gas to a second reaction zone comprising at least two reactors arranged in parallel and being adapted to operate in a first and a second mode of operation, the reactors comprising dual functioning heterogeneous catalyst(-s) capable of performing a catalytic steam cracking reaction in a first mode of operation or a steam reforming reaction in a second mode of operation, where the partially upgraded heavy renewable oil fraction from the first reaction zone is contacted with the dual functioning heterogeneous catalyst and steam at a pressure of 10 to 150 bar and a temperature of 350° C. to 430° C. whereby a catalytic steam cracking of the partially upgraded heavy renewable oil is performed in the reactors in the first mode of operation, hereby providing a further upgraded heavy renewable oil fraction, while separated process gas from the first and/or second reaction zone is contacted with the dual functioning catalyst and steam at a pressure of 0.1 to 10 bar and a temperature of 350 to 600° C. in the reactors in the second mode of operation and contacted with the dual functioning catalyst, thereby producing a hydrogen enriched gas, separating the further upgraded heavy renewable oil fraction from the catalytically steam cracking reactor to at least one light renewable oil fraction, a heavy renewable oil fraction, a hydrogen rich process gas and a water phase, separating hydrogen from the hydrogen enriched gas from the catalytic steam cracking zone and/or from the catalytic steam reforming and recycling it to the first reaction zone, alternating the reactors between the first mode of operation and the second mode of operation at predetermined time intervals thereby allowing for regeneration of the heterogeneous catalyst for the catalytic steam cracking in the first mode of op

Disclosed is a method for producing low carbon olefins and/or aromatics from feedstock comprising naphtha. The method can include the following steps: a) feeding feedstock comprising naphtha into a fast fluidized bed reactor; b) contacting the feedstock with a catalyst under conditions to produce a gas product and spent catalyst; c) separating the gas product to produce a stream comprising primarily one or more low carbon olefins and/or one or more aromatics; d) transporting the spent catalyst to a regenerator; e) regenerating the spent catalyst in the regenerator to form regenerated catalyst; and f) returning the regenerated catalyst to the fast fluidized bed reactor.

According to one or more embodiments described herein, a method for processing a hydrocarbon feedstock may include contacting a mixed feed with a solvent in a deasphalting system to form residue and deasphalted oil, contacting the deasphalted oil with supercritical water to form an upgraded oil, separating the upgraded oil into at least a light fraction and a heavy fraction, and combining at least a portion of the heavy fraction with the hydrocarbon feedstock to form the mixed feed.

According to one or more embodiments described herein, a method for processing a hydrocarbon feedstock may include contacting a mixed feed with a solvent in a deasphalting system to form residue and deasphalted oil, contacting the deasphalted oil with supercritical water to form an upgraded oil, separating the upgraded oil into at least a light fraction and a heavy fraction, and combining at least a portion of the heavy fraction with the hydrocarbon feedstock to form the mixed feed.

An integrated process for conversion of a hydrocarbon stream comprising light naphtha to enhanced value products. The process includes passing the hydrocarbon stream through a first reactor, the first reactor being a catalytic bed reactor with a dual-function catalyst to simultaneously reform light naphtha to BTEX and crack light naphtha to ethane, propane, and butanes. Further, the process includes passing an effluent of the first reactor to a gas-liquid separating unit to generate a liquid stream and a gas stream, and passing the gas stream to a gas separator unit to remove hydrogen gas and methane and generate an enhanced gas stream. The process further includes passing the enhanced gas stream through a second reactor, the second reactor being a pyrolysis unit operated at steam cracking conditions to convert ethane, propane, and butanes in the enhanced gas stream to light. An associated system for performing the process is also provided wherein the integrated process does not include passage of a process stream to a separate and independent hydrocracking unit to crack light alkanes in the hydrocarbon stream to smaller alkanes.

Method of refining whole crude oil or a wide cut crude oil, the methods comprising a combination of a hydrotreating reactor, a distillation tower, and an optional flash evaporation separator. The methods can also include light ends processing, fluid catalytic cracking, reforming, hydrocracking, and demetalization. In some methods a whole crude oil is first processed through a flash evaporation separator to create a wide cut crude oil and in other methods, the flash evaporation separator is not used as the whole crude oil is first treated in a hydrotreater.

Method of refining whole crude oil or a wide cut crude oil, the methods comprising a combination of a hydrotreating reactor, a distillation tower, and an optional flash evaporation separator. The methods can also include light ends processing, fluid catalytic cracking, reforming, hydrocracking, and demetalization. In some methods a whole crude oil is first processed through a flash evaporation separator to create a wide cut crude oil and in other methods, the flash evaporation separator is not used as the whole crude oil is first treated in a hydrotreater.