A method to produce a fuel product such as jet fuel, diesel or single battlefield fuel from a Fischer Tropsch syncrude comprising the steps of: 1) Separating the HFTL product from the reactor effluent gasses at reactor temperature and partially cooling the reactor effluent gas before transferring it to the enhanced hot separator; 2) enhancing the hot separator downstream of the Fischer Tropsch reactor with trays or packing and also adding reflux of the LFTL product, to improve separation efficiency and substantially reduce the C16+ portion of the hydrocarbons in the LFTL product; 3) combining the HFTL and MFTL product to from a combined HFTL product and further processing the combined HFTL in a hydroprocessing reactor that has a stacked bed with a layer of hydrocracking catalyst to crack the waxy C20+ hydrocarbons and a layer of hydroisomerization catalyst to isomerize the light fraction to increase the iso to n-paraffin ratio of the hydroprocessed product; 4) the LFTL product that is not recycled to the hot separator as reflux, bypasses the hydroprocessing reactor and is blended with the hydroprocessed product before distillation; and 5) the combined raw LFTL product and the hydroprocessed product is distilled to make naphtha, a fuel product, and a baseoil product. The method may be modified to make a single fuel product, preferably a jet fuel product.

A method to produce a fuel product such as jet fuel, diesel or single battlefield fuel from a Fischer Tropsch syncrude comprising the steps of: 1) Separating the HFTL product from the reactor effluent gasses at reactor temperature and partially cooling the reactor effluent gas before transferring it to the enhanced hot separator; 2) enhancing the hot separator downstream of the Fischer Tropsch reactor with trays or packing and also adding reflux of the LFTL product, to improve separation efficiency and substantially reduce the C16+ portion of the hydrocarbons in the LFTL product; 3) combining the HFTL and MFTL product to from a combined HFTL product and further processing the combined HFTL in a hydroprocessing reactor that has a stacked bed with a layer of hydrocracking catalyst to crack the waxy C20+ hydrocarbons and a layer of hydroisomerization catalyst to isomerize the light fraction to increase the iso to n-paraffin ratio of the hydroprocessed product; 4) the LFTL product that is not recycled to the hot separator as reflux, bypasses the hydroprocessing reactor and is blended with the hydroprocessed product before distillation; and 5) the combined raw LFTL product and the hydroprocessed product is distilled to make naphtha, a fuel product, and a baseoil product. The method may be modified to make a single fuel product, preferably a jet fuel product.

The invention concerns a process for the treatment of a hydrocarbon feed in order to obtain a heavy hydrocarbon fraction with a low sulphur content, said process comprising the following steps: a) an optional step for hydrodemetallization carried out in permutable reactors, b) a step for fixed bed hydrotreatment of the effluent obtained from step a), c) a step for hydrocracking of the effluent obtained in step b) in by-passable reactors, d) a step for separation of the effluent obtained from step c).

The invention concerns a process for the treatment of a hydrocarbon feed in order to obtain a heavy hydrocarbon fraction with a low sulphur content, said process comprising the following steps: a) an optional step for hydrodemetallization carried out in permutable reactors, b) a step for fixed bed hydrotreatment of the effluent obtained from step a), c) a step for hydrocracking of the effluent obtained in step b) in by-passable reactors, d) a step for separation of the effluent obtained from step c).

The invention relates to a process for converting a hydrocarbon-containing feedstock containing at least one hydrocarbon fraction having a sulphur content of at least 0.1% by weight, an initial boiling temperature of at least 340° C. and a final boiling temperature of at least 440° C., making it possible to obtain a heavy fraction having a sediment content after ageing of less than or equal to 0.1% by weight, said process comprising the following stages: a) a stage of hydrocracking the feedstock in the presence of hydrogen in at least one reactor containing a supported catalyst in an ebullating bed, b) a stage of separating the effluent obtained at the end of stage a), c) a stage of maturation of the heavy fraction originating from the separation stage b), d) a stage of separating the sediments from the heavy fraction originating from the maturation stage c) to obtain said heavy fraction.

The invention relates to a process for converting a hydrocarbon-containing feedstock containing at least one hydrocarbon fraction having a sulphur content of at least 0.1% by weight, an initial boiling temperature of at least 340° C. and a final boiling temperature of at least 440° C., making it possible to obtain a heavy fraction having a sediment content after ageing of less than or equal to 0.1% by weight, said process comprising the following stages: a) a stage of hydrocracking the feedstock in the presence of hydrogen in at least one reactor containing a supported catalyst in an ebullating bed, b) a stage of separating the effluent obtained at the end of stage a), c) a stage of maturation of the heavy fraction originating from the separation stage b), d) a stage of separating the sediments from the heavy fraction originating from the maturation stage c) to obtain said heavy fraction.

The invention concerns a process and a facility for reducing the concentration of heavy polycyclic aromatic compounds (HPNA) in the recycle loop of hydrocracking units, which comprises a fractionation column.

In accordance with this process, a portion of the stream present at the level of at least one plate (I) which is the supply plate or a plate located between the supply plate and said residue evacuation point, or if stripping gas is injected, between the supply plate and said stripping gas injection point, is withdrawn from the fractionation column.

A portion, preferably all, of said withdrawn stream is recycled to the hydrocracking step directly or after optional separation of the gases. The residue is purged in its entirety.

In a preferred embodiment, a portion of the stream present at the level of at least one plate (II) located between the supply plate and the plate for withdrawing the heaviest distillate fraction is also withdrawn from the column. After stripping, all or a portion of the gas is recycled to the column and the liquid is sent for hydrocracking.

The invention concerns a process and a facility for reducing the concentration of heavy polycyclic aromatic compounds (HPNA) in the recycle loop of hydrocracking units, which comprises a fractionation column.

In accordance with this process, a portion of the stream present at the level of at least one plate (I) which is the supply plate or a plate located between the supply plate and said residue evacuation point, or if stripping gas is injected, between the supply plate and said stripping gas injection point, is withdrawn from the fractionation column.

A portion, preferably all, of said withdrawn stream is recycled to the hydrocracking step directly or after optional separation of the gases. The residue is purged in its entirety.

In a preferred embodiment, a portion of the stream present at the level of at least one plate (II) located between the supply plate and the plate for withdrawing the heaviest distillate fraction is also withdrawn from the column. After stripping, all or a portion of the gas is recycled to the column and the liquid is sent for hydrocracking.

In accordance with one embodiment of the present disclosure, a heavy oil may be upgraded by a process that may include removing at least a portion of metals from the heavy oil in a hydrodemetalization reaction zone to form a hydrodemetalization reaction effluent, removing at least a portion of metals and at least a portion of nitrogen from the hydrodemetalization reaction effluent in a transition reaction zone to form a transition reaction effluent, removing at least a portion of nitrogen from the transition reaction effluent in a hydrodenitrogenation reaction zone to form a hydrodenitrogenation reaction effluent, and reducing aromatics content in the hydrodenitrogenation reaction effluent in a hydrocracking reaction zone by contacting the hydrodenitrogenation reaction effluent to form an upgraded fuel.

A process for converting heavy petroleum feedstocks to produce fuel oils and fuel-oil bases with a low sediment content comprises: a) fixed-bed hydrotreatment, b) optional separation of the effluent originating from the hydrotreatment stage a), c) hydrocracking of at least a part of the effluent from a) or of at least a part of the heavy fraction originating from b), d) separation of the effluent originating from c), e) maturation of the heavy liquid fraction originating from the separation d), and f) separation of the sediments from the heavy liquid fraction originating from the maturation e).