12results about "Refining by centrifugal force" patented technology

The invention relates to a method for treating a feedstock comprising a plastics-derived and / or tyre-derived and / or solid-recovered-fuel-derived pyrolysis oil, which method comprises: b) hydrogenation of the feedstock and a portion of the liquid effluent resulting from the separation step e1) to obtain a hydrogenated effluent; c) hydrotreatment of the hydrogenated effluent to obtain a hydrotreated effluent; d) hydrocracking of the hydrotreated effluent to obtain a hydrocracked effluent; e1) separation of the hydrocracked effluent at high temperature and high pressure to obtain a gaseous effluent and a liquid effluent, a portion of which is recycled upstream of step b); e2) a separation / washing step carried out at low temperature and high pressure, fed with the gaseous effluent and optionally the other portion of the liquid effluent resulting from step e1) and an aqueous solution, to obtain a hydrocarbon effluent freed of its impurities.

The present invention relates to a method for producing an intermediate fraction and naphtha from a mixed raw material containing a heavy fraction of fossil hydrocarbons, wherein at least 50% by weight of the heavy fraction is a pyrolysis oil fraction of plastics and / or tires and / or recovered solid fuels, the initial boiling point of the compound being greater than 300°C and the final boiling point being less than 700°C, and less than 50% by weight is an aromatic compound content of more than 30% by weight, and the method comprises the following steps: a) a step of hydrogenating the mixed raw material to obtain a hydrogenated effluent; b) a step of hydrocracking the hydrogenated effluent to obtain a hydrocracking effluent; c) a step of separating the hydrocracking effluent to produce at least one gaseous effluent and at least one liquid effluent containing hydrogen; d) a fractional distillation step to produce a naphtha fraction and an intermediate distillate fraction.

A system for refining crude oil to minimize emissions of toxic compounds in the atmosphere during refining. The crude oil is treated with viscosity-reductant additives, reducing viscosity by up to 50% and increasing API gravity by more than 2 points. The method of spray-cracking and vacuum-flashing of crude oil, the system separates light and heavy end chains within the reactor. The vapor is condensed into designer fuels using a multi-stage horizontal reverse condensate-condenser or closed-loop distillation tower. Process heater directs flue gases through high-salinity fluids, such as a brine-processing device to capture, sequester, or mineralize the CO2, CO, NOx, and other contaminants from the flue gases. This results in a significant reduction in emissions, a further reduction to near-zero emissions (>95-98%) is achieved by the combination of (1) the closed loop processes, tank blanketing and capturing, sequestering and mineralizing emitted flue gases from the heater combustion-exhaust.

The present invention relates to a method for producing an intermediate fraction and naphtha from a mixed raw material containing a heavy fraction of fossil hydrocarbons, wherein at least 50% by weight of the heavy fraction is a pyrolysis oil fraction of plastics and / or tires and / or solid recovery fuel, the initial boiling point of the compounds exceeding 300°C and the final boiling point below 700°C, and less than 50% by weight is a pyrolysis oil fraction of plastics and / or tires and / or solid recovery fuels with a paraffinic and olefinic compound content exceeding 60% by weight, and the method comprises the following steps: a) a step of hydrogenating the mixed raw material to obtain a hydrogenated effluent; b) a step of hydrocracking the hydrogenated effluent to obtain a hydrocracking effluent; c) a step of separating the hydrocracking effluent to produce at least one gaseous effluent containing hydrogen and at least one liquid effluent; d) a fractional distillation step for producing a naphtha fraction and an intermediate distillate fraction.

Process of processing a feed comprising a pyrolysis oil of plastic and / or tires and / or solid recovered fuels (1), said process comprising the following steps: a) a pre-fractionation step of the feed to obtain a cut having a boiling point less than or equal to 120 °C (2) and a cut having a boiling point greater than 120 °C (3) containing olefins having 9 or more carbon atoms, b) a fluidized bed catalytic cracking step carried out in a fluidized bed catalytic cracking reaction section fed by at least said cut having a boiling point greater than 120 °C (3) to produce propylene (5).

In an aspect, a method is disclosed that includes contacting a composition with an aqueous solution to yield a mixture, where the composition includes one or more of animal fats, animal oils, plant fats, plant oils, vegetable fats, vegetable oils, greases, and used cooking oil, about 5 wt.% or more of free fatty acids, about 10 wppm or more of total metals, about 8 wppm or more phosphorus, about 20 wppm or more of nitrogen, and the aqueous solution includes ((NH4)2H2EDTA, (NH4)4EDTA, a monoammonium salt of diethylenetriaminepentaacetic acid, a diammonium salt of diethylenetriaminepentaacetic acid, a triammonium salt of diethylenetriaminepentaacetic acid, a tetraammonium salt of diethylenetriaminepentaacetic acid, (NH4)5DTPA, a combination of citric acid and Na4EDTA, a combination of citric acid and Na2H2EDTA, a combination of citric acid and a monosodium salt of diethylenetriaminepentaacetic acid, a combination of citric acid and a disodium salt of diethylenetriaminepentaacetic acid, a combination of citric acid and a trisodium salt of diethylenetriaminepentaacetic acid, a combination of citric acid and a tetrasodium salt of diethylenetriaminepentaacetic acid, a combination of citric acid and NasDTPA, or a combination of any two or more thereof, where the method further includes centrifuging the mixture to yield a first treated composition, wherein the first treated composition has less total metals and less phosphorus than the composition.

Process for treating a feedstock comprising a pyrolysis oil of plastic and / or tires and / or solid recovered fuels comprising: b) hydrogenation of said feedstock and part of the liquid effluent from the separation step e1) to obtain a hydrogenated effluent, c) hydrotreating said hydrogenated effluent to obtain a hydrotreated effluent, d) hydrocracking said hydrotreated effluent to obtain a hydrocraced effluent, e1) separation of the hydrocraced effluent carried out at high temperature and high pressure to obtain a gaseous effluent and a liquid effluent, part of which is recycled upstream of step b), e2) a separation / washing step carried out at low temperature and high pressure fed by the gaseous effluent and optionally the other part of the liquid effluent from step e1) and an aqueous solution, to obtain a hydrocarbon effluent free of impurities.

A method for purifying a composition having a plastic liquefaction oil, wherein (a) a composition of a plastic liquefaction oil is provided, then (b) washed with a first aqueous solution to obtain an organic phase containing the washed composition and a first aqueous effluent, then (c) the organic phase of step (b) is treated in the presence of a basic compound at a temperature of at most 450° C. to obtain an organic effluent comprising a treated composition, and (d) the organic effluent of step (c) is washed with a second aqueous solution to obtain a purified composition having a reduced heteroatom content, and a second aqueous effluent. Furthermore, in step (b), the first aqueous effluent is returned in whole or in part to step (d), and / or in step (d), the second aqueous effluent is returned in whole or in part to step (b).

Process for treating a feedstock comprising a pyrolysis oil from plastics and / or tyres and / or solid recovered fuels, said process comprising the following steps: a) a pre-fractionation step of the feedstock to obtain a cut having a boiling point less than or equal to 120 °C and a cut having a boiling point greater than 120 °C containing olefins having 9 or more carbon atoms, b) a fluid catalytic cracking step carried out in a fluid catalytic cracking reaction section fed with at least said cut having a boiling point greater than 120 °C to produce propylene.

Aspects of the present disclosure generally relate to new processes for converting waste plastic. Aspects of the present disclosure also generally relate to new waste plastic conversion plants. In an aspect, a process for converting waste plastic is provided. The process includes heating a waste plastic feed with a dissolution medium to form a mixture comprising an insoluble component and a soluble component. The process further includes separating the soluble component of the mixture from the insoluble component of the mixture. The process further includes contacting the soluble component with a depolymerization catalyst to form a depolymerization product effluent. The process further includes separating a C12+ hydrocarbon from the depolymerization product effluent. The process further includes introducing the C12+ hydrocarbon to the dissolution unit.