Patent classifications
C10G67/10
TWO-STEP PROCESS FOR CONVERTING LIQUEFIED WASTE PLASTICS INTO STEAM CRACKER FEED
The present disclosure relates to a method for upgrading liquefied waste plastics, the method including a step (A) of providing liquefied waste plastics (LWP) material, a step (B) including pre-treating the liquefied waste plastics material by contacting the liquefied waste plastics material with an aqueous medium having a pH of at least 7 at a temperature of 200° C. or more, followed by liquid-liquid separation, to produce a pre-treated liquefied waste plastics material, a step (C) including hydrotreating the pre-treated liquefied waste plastics material, optionally in combination with a co-feed, to obtain a hydrotreated material, and a step (D) of post-treating the hydrotreated material to obtain a steam cracker feed.
PROCESS FOR REMOVING OXYGENATES FROM HYDROCARBON STREAMS
A method of removing oxygenates from a hydrocarbon stream comprises passing a hydrocarbon stream to a caustic tower having a plurality of loops, contacting the hydrocarbon stream with a sulfided catalyst between a first loop of the plurality of loops and a second loop of the plurality of loops to produce a reaction product, passing the reaction product to the second loop, removing at least a portion of the hydrogen sulfide in the second loop of the caustic tower to produce a product stream, and separating the product stream into a plurality of hydrocarbon streams in a separation zone located downstream of the caustic tower. The hydrocarbon stream comprises hydrocarbons, oxygen containing components, and sulfur containing compounds. At least a portion of the sulfur compounds react in the presence of the sulfided catalyst to produce hydrogen sulfide in the reaction product.
Purification of recycled and renewable organic material
A method is disclosed of purifying a recycled or renewable organic material, wherein the recycled or renewable organic material contains more than 20 ppm Cl. Exemplary methods include (a) providing the recycled or renewable organic material; (b) purifying the organic recycled or renewable organic material to obtain a purified recycled or renewable organic material, and (c) hydrotreating the purified recycled or renewable organic material in a presence of a hydrotreating catalyst at a temperature from 270 to 380° C. under pressure from 4 to 20 MPa and under continuous hydrogen flow; to obtain purified hydrotreated recycled or renewable organic material.
Integrated slurry hydroprocessing and steam pyrolysis of crude oil to produce petrochemicals
An integrated slurry hydroprocessing and steam pyrolosyis process for the production of olefins and aromatic petrochemicals from a crude oil feedstock is provided. Crude oil, a steam pyrolysis residual liquid fraction and slurry reside are combined and treated in a hydroprocessing zone in the presence of hydrogen under conditions effective to produce an effluent having an increased hydrogen content. The effluent is thermally cracked with steam under conditions effective to produce a mixed product stream and steam pyrolysis residual liquid fraction. The mixed product stream is separated and olefins and aromatics are recovered and hydrogen is purified and recycled.
Integrated slurry hydroprocessing and steam pyrolysis of crude oil to produce petrochemicals
An integrated slurry hydroprocessing and steam pyrolosyis process for the production of olefins and aromatic petrochemicals from a crude oil feedstock is provided. Crude oil, a steam pyrolysis residual liquid fraction and slurry reside are combined and treated in a hydroprocessing zone in the presence of hydrogen under conditions effective to produce an effluent having an increased hydrogen content. The effluent is thermally cracked with steam under conditions effective to produce a mixed product stream and steam pyrolysis residual liquid fraction. The mixed product stream is separated and olefins and aromatics are recovered and hydrogen is purified and recycled.
ALKALI-ENHANCED HYDROTHERMAL PURIFICATION OF PLASTIC PYROLYSIS OILS
A method is disclosed for preparing fuel components from waste pyrolysis oil. Exemplary embodiments include providing a waste pyrolysis oil having plastic pyrolysis oil and/or tyre pyrolysis oil, and impurities; purifying the waste pyrolysis oil by hydrothermal treatment with water or alkaline water; separating the hydrothermally treated waste pyrolysis oil from an aqueous phase; preparing a hydroprocessing feed from the hydrothermally treated waste pyrolysis oil; hydroprocessing the hydroprocessing feed catalytically with hydrogen to cause hydrogenation; and recovering a hydrocarbon fraction boiling in a liquid fuel range.
METHOD FOR UPGRADING LOW-VALUE AND WASTE FATS, OILS, AND GREASES
The present technology provides a method that includes contacting a composition with a caustic solution to produce a caustic-treated composition; combining the caustic-treated composition with silica particles to produce a slurry; and removing the silica particles from the slurry to produce a treated composition; wherein the composition includes one or more of animal fats, animal oils, plant fats, plant oils, vegetable fats, vegetable oils, greases, and used cooking oil and the composition includes: at least about 10 wppm of total metals, at least about 8 wppm of phosphorus, at least about 10 wppm of chlorine, at least about 10 wppm of sulfur, at least about 20 wppm of nitrogen, at least about 5 wt. % of free fatty acids; and has an acid number from about 10 mg KOH/g to about 150 mg KOH/g, and the silica particles has a particle size from about 10 microns to about 50 microns, a BET surface area from about 200 m.sup.2/g to about 1000 m.sup.2/g.
UPGRADING SIMPLIFIED PROCESS FOR HEAVY OILS FLUIDIZATION DEDICATED TO THE HEAVY OILS TRANSPORTATION AND GREENHOUSE GAS REDUCTION
An economic and sustainable process is described herein for zeroing the addition of diluent required in heavy oils transportation by pipelines and by rails. The process reduces both heavy oils characteristics such as: (a) viscosity, (b) density, (c) acidic compounds (TAN), (d) sulfur and (e) olefins generated during the thermal treatment in order to meet stablished criteria for transportation. To prevent premature catalyst deactivation and precipitation, the solids materials in the crude heavy oil are removed first through a physical separation unit, and constitutes a fraction called solid fraction (≤30%), while the solids free fraction or de-solidified fraction (≥70%) of the heavy oil undergoes a thermo-catalytic treatment in a second unit under hydrogen pressure. During this step, both heavy oils properties listed above are reduced. Once produced, the olefins are then saturated by the hydrogen (or additive) present during the reaction yielding a stable treated heavy oil.
Integrated hydrotreating and steam pyrolysis process for the direct processing of a crude oil to produce olefinic and aromatic petrochemicals
An integrated hydrotreating and steam pyrolysis process for the direct processing of a crude oil to produce olefinic and aromatic petrochemicals by separating the crude oil into light components and heavy components.
Integrated hydrotreating and steam pyrolysis process for the direct processing of a crude oil to produce olefinic and aromatic petrochemicals
An integrated hydrotreating and steam pyrolysis process for the direct processing of a crude oil to produce olefinic and aromatic petrochemicals by separating the crude oil into light components and heavy components.