The present application relates to a process for cracking a hydrocarbon feedstock, using to the largest extent electrically powered equipment where the power is obtained from renewable sources or low-carbon sources. In particular, it relates to a furnace for steam cracking a hydrocarbon feedstock, wherein the furnace comprises one or more tubes for transporting the hydrocarbon feedstock and dilution steam; and an electrically heated infrared emitter for transferring heat to the tubes. It also relates to a process for steam cracking a hydrocarbon feedstock using infrared radiation.

The present application relates to a process for cracking a hydrocarbon feedstock, using to the largest extent electrically powered equipment where the power is obtained from renewable sources or low-carbon sources. In particular, it relates to a process for cracking a hydrocarbon feedstock, including bringing the hydrocarbon feedstock and dilution steam to supersonic velocities in the reactor, followed by applying a shockwave to induce cracking of the hydrocarbon feedstock, to convert at least a part of the hydrocarbon mixture to produce olefins.

The present application relates to a process for cracking a hydrocarbon feedstock, using to the largest extent electrically powered equipment where the power is obtained from renewable sources or low-carbon sources. In particular, it relates to a process for cracking a hydrocarbon feedstock, including bringing the hydrocarbon feedstock and dilution steam to supersonic velocities in the reactor, followed by applying a shockwave to induce cracking of the hydrocarbon feedstock, to convert at least a part of the hydrocarbon mixture to produce olefins.

A method for steam cracking of a hydrocarbon feed is disclosed. The method can include heating a hydrocarbon feed stream with a first quench water stream to form a heated hydrocarbon feed stream and a second quench water stream having a temperature lower than the first quench water stream, steam cracking the heated hydrocarbon feed stream to form a cracked stream comprising cracked gases, contacting the cracked stream with a quench water to form a gaseous stream comprising quenched cracked gases and a crude water stream comprising heated quench water and pyrolysis gasoline, and separating the crude water stream to form the first quench water stream.

A method for steam cracking of a hydrocarbon feed is disclosed. The method can include heating a hydrocarbon feed stream with a first quench water stream to form a heated hydrocarbon feed stream and a second quench water stream having a temperature lower than the first quench water stream, steam cracking the heated hydrocarbon feed stream to form a cracked stream comprising cracked gases, contacting the cracked stream with a quench water to form a gaseous stream comprising quenched cracked gases and a crude water stream comprising heated quench water and pyrolysis gasoline, and separating the crude water stream to form the first quench water stream.

A process and system for liquefying and plasticizing a waste plastic in a pyrolysis film reactor are provided. More particularly, a liquefied waste plastic, which may include halogen-depleted molten waste plastics, may be pyrolyzed in a pyrolysis film reactor to form a pyrolysis oil and a pyrolysis gas. The pyrolysis film reactors may include a falling film reactor and/or an upflow film reactor.

The present invention relates to a process for purifying a crude nitrogen-containing, sulfur-containing, halogen-containing pyrolysis oil originating from the pyrolysis of plastic waste, comprising (i) subjecting the crude pyrolysis oil to a treatment with a trapping agent selected from (a) an elemental metal of group 1, 2, 6, 7, 8, 9, 10, 11, 12, 13 of the IUPAC periodic table, a mixture or an alloy thereof; (b) an oxide of metals of group 1, 2, 6, 7, 8, 9, 10, 11, 12, 13 of the IUPAC periodic table or a mixture thereof; (c) an alkoxide of metals of group 1, 2 of the IUPAC periodic table or a mixture thereof; (d) a solid sorption agent as defined in the claims; or a combination of at least two trapping agents (a), (b), (c) or (d); (ii) separating the product obtained into a purified pyrolysis oil fraction having a reduced nitrogen, sulfur and halogen content in relation to the crude pyrolysis oil and a fraction comprising the trapping agent which has bound at least a part of the sulfur, nitrogen, halogen present in the crude pyrolysis oil

The present invention relates to a process for purifying a crude nitrogen-containing, sulfur-containing, halogen-containing pyrolysis oil originating from the pyrolysis of plastic waste, comprising (i) subjecting the crude pyrolysis oil to a treatment with a trapping agent selected from (a) an elemental metal of group 1, 2, 6, 7, 8, 9, 10, 11, 12, 13 of the IUPAC periodic table, a mixture or an alloy thereof; (b) an oxide of metals of group 1, 2, 6, 7, 8, 9, 10, 11, 12, 13 of the IUPAC periodic table or a mixture thereof; (c) an alkoxide of metals of group 1, 2 of the IUPAC periodic table or a mixture thereof; (d) a solid sorption agent as defined in the claims; or a combination of at least two trapping agents (a), (b), (c) or (d); (ii) separating the product obtained into a purified pyrolysis oil fraction having a reduced nitrogen, sulfur and halogen content in relation to the crude pyrolysis oil and a fraction comprising the trapping agent which has bound at least a part of the sulfur, nitrogen, halogen present in the crude pyrolysis oil

The present disclosure relates to hydrocarbon pyrolysis of advantaged feeds. The advantaged feeds can comprise hydrocarbon, at least one halogen-containing composition, and at least one metal-containing composition, where the halogen-containing composition and the metal-containing composition are substantially different compositions. The disclosure encompasses steam cracking of advanced feeds comprising hydrocarbon and one or more of chloride-containing compositions, nickel-containing compositions, and vanadium-containing compositions.

Disclosed is a method for maximizing ethylene or propene production, the main steps thereof being: taking crude oil and distillate thereof, pre-processing urban mixed-waste plastics as raw material, then entering same into a catalytic cracking reactor, removing via a two-stage pre-wash tower and related separation, then cooling the reacted high-temperature oil and gas and removing impurities to obtain light and heavy distillate oils; performing a hydrogenation reaction operation on the heavy distillate oil; performing light distillate oil separation, performing a recombination operation on its olefins, its alkanes entering a steam cracking apparatus to produce rich ethylene, and its aromatic components being separated as by-products; the product of the described hydrogenation and recombination reaction and the steam-cracked distillate oil is recycled to the catalytic cracking reactor. In the production method of the present invention, the yield of ethylene and propene together is 45-75 m % of the raw material, and the yield of aromatics is 15-30 m % of the raw material; in particular, when using urban mixed-waste plastics as raw material, the ethylene or propene thus produced are used to produce new plastics by way of a conventional polymerization process, achieving the chemical recycling of waste plastics.