A process for upgrading a pyrolysis oil comprising treating the pyrolysis oil with an upgrading solution to provide a mixture comprising an extract phase and a raffinate phase, wherein the upgrading solution comprises a polar organic solvent, and wherein the pyrolysis oil is a derived from the pyrolysis of plastic or rubber, or a combination thereof, and an upgraded pyrolysis oil prepared by said process.

A process for upgrading a pyrolysis oil comprising treating the pyrolysis oil with an upgrading solution to provide a mixture comprising an extract phase and a raffinate phase, wherein the upgrading solution comprises a polar organic solvent, and wherein the pyrolysis oil is a derived from the pyrolysis of plastic or rubber, or a combination thereof, and an upgraded pyrolysis oil prepared by said process.

There is provided a process and system for producing carbon fiber products. The process can involve deasphalting a heavy hydrocarbon feedstock, which can contain native asphaltenes, to produce a solid asphaltene particulate material, which can be further treated to produce the carbon fiber products. In some implementations, the solid asphaltene particulate material can be extruded in the presence of a polymer. In some implementations, the solid asphaltene particulate material can be chemically treated with a chemical agent including a Lewis acid, an oxidizing agent and/or a reducing agent before extrusion. In some implementations, the process can further produce activated carbon fibers.

The present invention describes the coprocessing of a lignocellulosic liquid stream and an intermediate fossil stream in the oil refining process comprising the steps of (a) contacting said intermediate fossil stream and said lignocellulosic liquid stream with a stream of solvent of C.sub.3-C.sub.10 hydrocarbons in an extraction section, obtaining a stream of extract with solvent and a stream of raffinate with solvent; and (b) sending said stream of extract with solvent to a separation section, obtaining a deasphalted oil stream comprising solvent-free carbon of renewable origin and a stream of recovered solvent. The present invention further relates to a process for producing fuels from the deasphalted oil stream comprising carbon of renewable origin, wherein the process comprises sending the deasphalted oil stream to a conversion section of an oil refinery. The conversion section is selected from catalytic hydrocracking unit, thermal cracking, fluidized-bed catalytic cracking, visbreaking, delayed coking and catalytic reforming.

The present invention describes the coprocessing of a lignocellulosic liquid stream and an intermediate fossil stream in the oil refining process comprising the steps of (a) contacting said intermediate fossil stream and said lignocellulosic liquid stream with a stream of solvent of C.sub.3-C.sub.10 hydrocarbons in an extraction section, obtaining a stream of extract with solvent and a stream of raffinate with solvent; and (b) sending said stream of extract with solvent to a separation section, obtaining a deasphalted oil stream comprising solvent-free carbon of renewable origin and a stream of recovered solvent. The present invention further relates to a process for producing fuels from the deasphalted oil stream comprising carbon of renewable origin, wherein the process comprises sending the deasphalted oil stream to a conversion section of an oil refinery. The conversion section is selected from catalytic hydrocracking unit, thermal cracking, fluidized-bed catalytic cracking, visbreaking, delayed coking and catalytic reforming.

A method for treating an aromatic mineral oil or a mixture of aromatic mineral oil and naphthenic mineral oil, the oil or the mixture of oils being loaded with polycyclic aromatic hydrocarbons, the method including a—optional removal of polycyclic aromatic hydrocarbon s having a molecular weight greater than or equal to 200 from the aromatic mineral oil or the mixture of aromatic mineral oil and naphthenic mineral oil loaded with polycyclic aromatic hydrocarbons; b—extraction, at a pressure lower than atmospheric pressure, of polycyclic aromatic hydrocarbons having a molecular weight lower than 200 solubilised in the oil or the mixture of oils obtained in step (a); and c—recovery of the oil or the mixture of oils depleted in polycyclic aromatic hydrocarbons.

Methods and systems for purifying a caustic fluid including sulfur are provided.

Scavenging compounds and compositions useful for scavenging hydrogen sulfide from streams are disclosed. The scavenging compositions may include a suspension of a metal component, a carrier solvent, and a polymer comprising styrene, propylene and ethylene. The streams may include asphalt, crude oil, naphtha, liquefied petroleum gas, vacuum gas oil, fuel oil, atmospheric tower bottoms, bitumen, and any combination of these streams.

Scavenging compounds and compositions useful for scavenging hydrogen sulfide from streams are disclosed. The scavenging compositions may include a suspension of a metal component, a carrier solvent, and a polymer comprising styrene, propylene and ethylene. The streams may include asphalt, crude oil, naphtha, liquefied petroleum gas, vacuum gas oil, fuel oil, atmospheric tower bottoms, bitumen, and any combination of these streams.

A process for upgrading heavy oil is provided, which integrates thermal cracking, hydrogenolysis, and catalytic aquathermolysis. A catalytic hydrogen-aquathermolysis reactor receives a heavy oil feed, water and hydrogen. In addition catalytic materials and a viscosity reducing agent are introduced. The catalytic hydrogen-aquathermolysis reactor is operated at conditions effective to produce an upgraded heavy oil product.