Abstract: This invention relates to alternative diesel fuels with improved cold flow properties. The alternative fuel may be a biodiesel which typically comprises fatty acid methyl or ethyl esters; or a diesel fuel blend including diesel fuel derived from a Fischer-Tropsch (FT) reaction and possibly comprising or containing crude-derived diesel fuel and biodiesel. The cold flow properties are improved by adding a higher alcohol component which is not a naturally occurring component of the biodiesel, nor the diesel fuel.

Abstract: The invention provides synthetically derived distillate kerosene produced by catalytic conversion of Fisher-Tropsch derived light olefins to distillates (COD) and hydrotreating thereof. The kerosene boils in the range of about 170 to 250° C. and includes less than 10% n-paraffins, more than 75% iso-paraffins and less than 1% aromatics.

Abstract: Disclosed is a tube sheet assembly for a waste heat boiler employed in a chemical process plant and which makes use of metal ferrules for protecting the inlets of the exchange tubes of the tube sheet. The tube sheet assembly includes at least one thermal insulator which is located inside an inlet opening of a tube sheet of the tube sheet assembly, and which covers a portion of a respective ferrule of the tube sheet assembly, thereby providing thermal insulation between the tube sheet and the ferrule.

Abstract: This invention relates to a process for the removal of catalyst particles from a hydrocarbon stream (14) derived from the reaction of synthesis gas (12) with a particulate Fischer Tropsch catalyst in a Fischer Tropsch reactor (10). The process includes a primary separation step (16) which makes use of a filter, wherein the filter has a pore size which is 70% to 95 of the average size of the particles of the Fischer Tropsch catalyst, thereby forming a primary filtered hydrocarbon stream (18) containing fine catalyst particles. The benefit of this selection of filter pore size is that it mitigates fines build-up on the filter of the primary separator. The primary filtered hydrocarbon stream (18) is then passed to a secondary separation step in a cross-flow filtration unit (20) which removes fine catalyst particles from the primary filtered hydrocarbon stream to provide a retenate (24) containing the catalyst fines, and permeate (22) containing a hydrocarbon product.

Abstract: The invention provides a low aromatic producing process for catalytical conversion of Fisher-Tropsch derived olefins to distillates (COD), which process includes the step of contacting Fisher-Tropsch derived olefins with a zeolite type catalyst at pressures of more than 50 barg.

Abstract: The invention provides a method for removing salt deposits from waste heat boilers in a reformer train. The method includes the steps of producing a fluid stream which includes steam from a reformer and flowing to waste heat boilers, and controlling the temperature and pressure of the fluid stream to reach a temperature in the waste heat boilers of below or equal to the salt deposit saturation point of the steam in the fluid stream.

Abstract: Disclosed is a tube sheet assembly for a waste heat boiler employed in a chemical process plant and which makes use of metal ferrules for protecting the inlets of the exchange tubes of the tube sheet. The tube sheet assembly includes at least one thermal insulator which is located inside an inlet opening of a tube sheet of the tube sheet assembly, and which covers a portion of a respective ferrule of the tube sheet assembly, thereby providing thermal insulation between the tube sheet and the ferrule.

Abstract: The invention provides synthetically derived distillate kerosene produced by catalytic conversion of Fisher-Tropsch derived light olefins to distillates (COD) and hydrotreating thereof. The kerosene boils in the range of about 170 to 250° C. and includes less than 10% n-paraffins, more than 75% iso-paraffins and less than 1% aromatics.

Abstract: The invention provides a low aromatic producing process for catalytical conversion of Fisher-Tropsch derived olefins to distillates (COD), which process includes the step of contacting Fisher-Tropsch derived olefins with a zeolyte type catalyst at pressures of more than 50 barg.

Abstract: The invention provides a low aromatic producing process for catalytical conversion of Fisher-Tropsch derived olefins to distillates (COD), which process includes the step of contacting Fisher-Tropsch derived olefins with a zeolyte type catalyst at pressures of more than 50 barg.

Abstract: The invention provides a process for the production of synthetically derived diesel and diesel produced by the process. The process includes the steps of catalytic conversion of Fisher-Tropsch derived light olefins to distillates (COD) over a zeolite type catalyst at pressures of more than 50 barg, one step hydrotreating the COD product to simultaneously hydrogenate both olefins and aromatics, and collecting a hydrotreated fraction boiling between about 180° C. to 360° C.

Abstract: The invention provides synthetically derived distillate kerosene produced by catalytic conversion of Fisher-Tropsch derived light olefins to distillates (COD) and hydrotreating thereof. The kerosene boils in the range of about 170 to 250° C. and includes less than 10% n-paraffins, more than 75% iso-paraffins and less than 1% aromatics.

Abstract: This invention relates to a method for reducing the toxicity of a mixture of hydrocarbons by means of fractional distillation, a distillate having a reduced toxicity and a composition including the distillate.

Abstract: This invention relates to a method for reducing the toxicity of a mixture of hydrocarbons by means of fractional distillation, a distillate having a reduced toxicity and a composition including the distillate.

Abstract: This invention relates to a method for reducing the toxicity of a mixture of hydrocarbons by means of fractional distillation, a distillate having a reduced toxicity and a composition including the distillate.