The present application relates to a process for production of hydrocarbons comprising the steps of —converting a feed stream comprising alcohols, ethers or mixtures hereof over a metal-containing zeolite based catalyst, active in dehydrogenation of hydrocarbons, in a conversion step thereby obtaining a conversion effluent, —separating said effluent to obtain an aqueous process condensate stream, a liquid hydrocarbon stream and a gaseous stream, —removing part of the hydrogen formed in the conversion step, and recycling at least part of the gaseous and/or liquid hydrocarbon stream to the conversion step.

The present invention relates to a process for the conversion of a feedstock comprising at least 50 wt % related to the total weight of the feedstock of triglycerides, fatty acid esters and/or fatty acids having at least 10 carbon atoms into hydrogen, olefins, dienes, aromatics, gasoline, diesel fuel, jet fuel, naphtha and liquefied petroleum gas comprising: a) introducing of said feedstock in a first reactor to produce linear paraffins in presence of a hydrodesulfurization catalyst and hydrogen, b) separating the effluent of said first reactor in at least three parts to produce at least a first stream comprising part of said linear paraffins and at least a second stream comprising part of said linear paraffins, and at least a third stream comprising part of said linear paraffins c) sending said first stream to a steam cracker to produce hydrogen, olefins, dienes, aromatics and gasoline, diesel fuel being further fractionated; d) introducing said second stream into a second reactor in presence of a hydrocracking or hydroisomerization catalyst to produce a mixture comprising diesel fuel, jet fuel, naphtha and liquefied petroleum gas being further fractionated e) blending said third stream with the diesel fuel obtained at said step d)
wherein said feedstock of said first reactor is diluted in order to limit the temperature increase within said first reactor; and wherein before entering the first reactor said dilution is performed with a weight ratio diluent:feedstock being 1:1, and wherein said diluent comprises at least part of said paraffins obtained at step b).

A plastic catalytic pyrolysis process that can produce high yields of ethylene, propylene and other light olefins from waste plastics is disclosed. The catalytic product stream is quenched to below catalytic pyrolysis temperature quickly after exiting the reactor or bulk separation from the catalyst. Quench preserves selectivity of light olefinic monomers. The catalytic pyrolysis process can be operated in a single stage or a two-stage process.

A method is disclosed for hydrodeoxygenation of a bio-oil over a catalyst bed in a hydrodeoxygenation reactor, the method including combining a two-phase diluent having a water dew point and a bio-oil at a bio-oil temperature that is from 50° F. less than to 50° F. more than the water dew point. The two-phase diluent includes a liquid phase and a vapor phase, where the liquid phase includes a hydrocarbon and the vapor phase includes hydrogen and water.

A system for processing a renewable bio-based material comprising: a reactor, a feedstock substantially renewable and comprising triglycerides and free fatty acids, with hydrogen in the presence of a catalyst in a reactor to form a treated oil; a heat exchanger for receiving the treated oil from the reactor and reducing its temperature to a predetermined temperature; a high-pressure separator followed by a low-pressure separator; and (i) a distillation unit for passing the treated oil through to form green diesel and an adsorption unit for passing the green diesel through; or (ii) at least one distillation column to separate the treated oil into at least one component and an adsorption column for passing the at least one component through; wherein the reactor comprises a cooling function for controlling the temperature of the reactor; wherein the cooling function is an internal cooling function comprising adding a cooling substance into the reactor.

The present technology provides compositions that include at least about 98 weight percent (“wt %”) n-paraffins which, among other surprising features, may be suitable for use as a diesel fuel, an aviation fuel, a jet fuel blendstock, a blendstock to reduce the cloud point of a diesel fuel, a fuel for portable heaters, and/or as a charcoal lighter fluid. The composition includes at least about 98 wt % C.sub.7-C.sub.12 n-paraffins, where at least about 10 wt % of composition includes n-decane, at least about 20 wt % of the composition includes n-dodecane, and at least about 75 wt % of the composition includes even carbon number paraffins. The composition also includes less about 0.1 wt % oxygenates and less than about 0.1 wt % aromatics. The composition may be produced by a process that includes hydrotreating a biorenewable feedstock comprising at least one of palm kernel oil, coconut oil, babassu oil, microbial oil, or algal oil.

The present technology provides compositions that include at least about 98 weight percent (“wt %”) n-paraffins which, among other surprising features, may be suitable for use as a diesel fuel, an aviation fuel, a jet fuel blendstock, a blendstock to reduce the cloud point of a diesel fuel, a fuel for portable heaters, and/or as a charcoal lighter fluid. The composition includes at least about 98 wt % C.sub.7-C.sub.12 n-paraffins, where at least about 10 wt % of composition includes n-decane, at least about 20 wt % of the composition includes n-dodecane, and at least about 75 wt % of the composition includes even carbon number paraffins. The composition also includes less about 0.1 wt % oxygenates and less than about 0.1 wt % aromatics. The composition may be produced by a process that includes hydrotreating a biorenewable feedstock comprising at least one of palm kernel oil, coconut oil, babassu oil, microbial oil, or algal oil.

Methods and systems for hydrodeoxygenating a bio-derived feedstock during the production of renewable diesel and generating renewable power as part of the hydrodeoxygenation (HDO) process are provided herein. One method includes providing an HDO catalyst within either a shell or tube side of an isothermal HDO reactor including a shell-and-tube configuration and exposing a bio-derived feedstock to the HDO catalyst within the isothermal HDO reactor to form an HDO reactor effluent. The method also includes flowing a water stream through the opposite side of the isothermal HDO reactor as compared to the side including the HDO catalyst to remove the heat of reaction between the bio-derived feedstock and the HDO catalyst, where the removal of the heat of reaction using the water stream forms steam. The method further includes flowing the steam through a steam turbine to provide for the generation of renewable power.

Systems and methods are provided for processing a bio-derived feedstock in a commercial scale reactor to form renewable distillate boiling range fractions while managing the heat release. The management of the heat release is achieved in part by introducing 1.0 vol % or more of CO into at least a portion of the reaction environment for hydroprocessing of the bio-derived feedstock. The 1.0 vol % or more of CO can selectively reduce the activity of hydrotreating catalyst for olefin saturation.

Methods and systems for hydrodeoxygenating a bio-derived feedstock during the production of renewable diesel and generating renewable power as part of the hydrodeoxygenation (HDO) process are provided herein. One method includes providing an HDO catalyst within either a shell or tube side of an isothermal HDO reactor including a shell-and-tube configuration and exposing a bio-derived feedstock to the HDO catalyst within the isothermal HDO reactor to form an HDO reactor effluent. The method also includes flowing a water stream through the opposite side of the isothermal HDO reactor as compared to the side including the HDO catalyst to remove the heat of reaction between the bio-derived feedstock and the HDO catalyst, where the removal of the heat of reaction using the water stream forms steam. The method further includes flowing the steam through a steam turbine to provide for the generation of renewable power.