A process for reducing the environmental contaminants in a ISO 8217: 2017 Table 2 compliant Feedstock Heavy Marine Fuel Oil and resulting product, the process involving: mixing a Feedstock Heavy Marine Fuel Oil with a Activating Gas to give a feedstock mixture; contacting the feedstock mixture with one or more catalysts to form a Process Mixture; separating the Product Heavy Marine Fuel Oil from the Process Mixture and, discharging the Product Heavy Marine Fuel Oil. The Product Heavy Marine Fuel Oil complies with ISO 8217:2017 Table 2 for residual marine fuel and the Environmental Contaminants, which are selected from the group consisting of: a sulfur; vanadium, nickel, iron, aluminum and silicon and combinations thereof, are less than 0.5 wt. %. The Product Heavy Marine Fuel Oil can be used as blending stock for an ISO 8217:2017 Table 2 compliant, IMO 2020 compliant, low sulfur heavy marine fuel composition.

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.

A multi-stage process for reducing the environmental contaminants in an ISO8217 Table 2 compliant Feedstock Heavy Marine Fuel Oil involving a core desulfurizing process and a Detrimental Solids Removal Unit as a pre-treating step or post-treating step to the core process. The product of the process is a Product Heavy Marine Fuel Oil compliant with ISO 8217 Table 2 for residual marine fuel including a maximum sulfur content (ISO 14596 or ISO 8754) less than 0.5 wt % and a Detrimental Solids content less than 60 mg/kg. A device for conducting the process and producing the product is disclosed.

The present disclosure relates to methods for preparing aviation fuel component from a feedstock containing fossil hydrotreating feed and a second feed containing esters of fatty acids and rosins, free fatty acids and resin acids. The method includes subjecting the feedstock to hydrotreatment reaction conditions to produce a hydrotreated stream, separating the hydrotreated stream to three fractions from which at least part the highest boiling fraction is subjected to hydrocracking reaction to produce a hydrocracked stream. At least part of the hydrocracked stream is admixed with at least part of the hydrotreated stream, and their admixture is processed further until desired conversion of the feedstock to the aviation fuel component is obtained.

The present disclosure relates to methods for preparing aviation fuel component from a feedstock containing fossil hydrotreating feed and a second feed containing esters of fatty acids and rosins, free fatty acids and resin acids. The method includes subjecting the feedstock to hydrotreatment reaction conditions to produce a hydrotreated stream, separating the hydrotreated stream to three fractions from which at least part the highest boiling fraction is subjected to hydrocracking reaction to produce a hydrocracked stream. At least part of the hydrocracked stream is admixed with at least part of the hydrotreated stream, and their admixture is processed further until desired conversion of the feedstock to the aviation fuel component is obtained.

A method for hydrofining of middle distillates of Fischer-Tropsch synthetic full-range distillates, the method including: 1) separating middle distillates of Fischer-Tropsch synthetic full-range distillates to yield light distillates, heavy distillates and intermediate distillates; 2) metering the light distillates, the heavy distillates and the intermediate distillates; providing a hydrogenation reactor filled with a hydrofining catalyst and including a first feed inlet, a second feed inlet and a third feed inlet from the top down; mixing hydrogen and the light distillates, the heavy distillates and the intermediate distillates, respectively, and introducing resulting mixtures to the hydrogenation reactor via the first feed inlet, the second feed inlet and the third feed inlet, respectively; and 3) introducing products from 2) to a gas-liquid separator to yield hydrogen and liquid products, returning the hydrogen to the hydrogenation reactor, and introducing the liquid products to a fractionating column for further separation.

A method for hydrofining of middle distillates of Fischer-Tropsch synthetic full-range distillates, the method including: 1) separating middle distillates of Fischer-Tropsch synthetic full-range distillates to yield light distillates, heavy distillates and intermediate distillates; 2) metering the light distillates, the heavy distillates and the intermediate distillates; providing a hydrogenation reactor filled with a hydrofining catalyst and including a first feed inlet, a second feed inlet and a third feed inlet from the top down; mixing hydrogen and the light distillates, the heavy distillates and the intermediate distillates, respectively, and introducing resulting mixtures to the hydrogenation reactor via the first feed inlet, the second feed inlet and the third feed inlet, respectively; and 3) introducing products from 2) to a gas-liquid separator to yield hydrogen and liquid products, returning the hydrogen to the hydrogenation reactor, and introducing the liquid products to a fractionating column for further separation.

An apparatus for producing diesel fuel and jet fuel using Fischer-Tropsch synthetic oil, the apparatus including a hydrofining reactor, a hot separator, a first rectifying column, a hydrocracking reactor, a hydroisomerization reactor, a second rectifying column, a first mixing chamber and a second mixing chamber. The hydrofining reactor includes a raw material inlet and a hydrofining product outlet. The hot separator includes a separated oil outlet and a hydrofining product inlet which is connected to the hydrofining product outlet. The first rectifying column includes a tail oil fraction outlet, a diesel fraction outlet and a separated oil inlet which is connected to the separated oil outlet. The first mixing chamber includes a circulating hydrogen inlet, a first mixture outlet and a tail oil fraction inlet which is connected to the tail oil fraction outlet.

An apparatus for producing diesel fuel and jet fuel using Fischer-Tropsch synthetic oil, the apparatus including a hydrofining reactor, a hot separator, a first rectifying column, a hydrocracking reactor, a hydroisomerization reactor, a second rectifying column, a first mixing chamber and a second mixing chamber. The hydrofining reactor includes a raw material inlet and a hydrofining product outlet. The hot separator includes a separated oil outlet and a hydrofining product inlet which is connected to the hydrofining product outlet. The first rectifying column includes a tail oil fraction outlet, a diesel fraction outlet and a separated oil inlet which is connected to the separated oil outlet. The first mixing chamber includes a circulating hydrogen inlet, a first mixture outlet and a tail oil fraction inlet which is connected to the tail oil fraction outlet.