The present application relates to a method and a device system for producing feed stock of ethylene steam cracker and a nano-carbon material from waste plastics, and the method comprises: firstly, subjecting a waste plastic to thermal pyrolysis to obtain hydrocarbon oil and gas from thermal pyrolysis; then, subjecting the hydrocarbon oil and gas from thermal pyrolysis to gas-liquid separation to obtain crude plastic pyrolysis oil and pyrolysis gas; subsequently, subjecting the pyrolysis gas to decarbonization to obtain a nano-carbon material, and sequentially subjecting the crude plastic pyrolysis oil to hydrocracking and fractionating to obtain the feed stock of ethylene steam cracker. The device system comprises a thermal pyrolysis unit, a gas-liquid separation unit, a hydrocracking unit, a fractionating unit, and a decarbonization unit. The method and device system provided in the present application can prepare the steam-cracking feedstock of ethylene steam cracker with a high proportion of chain alkanes, which can achieve a higher yield of target products when used to produce downstream products, and the production process has no carbon dioxide emission, and is green and clean. The device system provided in the present application has a simple structure and can be used in industrial application.

The present application relates to a method and a device system for producing feed stock of ethylene steam cracker and a nano-carbon material from waste plastics, and the method comprises: firstly, subjecting a waste plastic to thermal pyrolysis to obtain hydrocarbon oil and gas from thermal pyrolysis; then, subjecting the hydrocarbon oil and gas from thermal pyrolysis to gas-liquid separation to obtain crude plastic pyrolysis oil and pyrolysis gas; subsequently, subjecting the pyrolysis gas to decarbonization to obtain a nano-carbon material, and sequentially subjecting the crude plastic pyrolysis oil to hydrocracking and fractionating to obtain the feed stock of ethylene steam cracker. The device system comprises a thermal pyrolysis unit, a gas-liquid separation unit, a hydrocracking unit, a fractionating unit, and a decarbonization unit. The method and device system provided in the present application can prepare the steam-cracking feedstock of ethylene steam cracker with a high proportion of chain alkanes, which can achieve a higher yield of target products when used to produce downstream products, and the production process has no carbon dioxide emission, and is green and clean. The device system provided in the present application has a simple structure and can be used in industrial application.

Integrated processes for upgrading a hydrocarbon condensate stream to enhanced value streams including splitting a desalted feed stream into a light cut, a middle cut, and a heavy cut. The light cut is provided to a steam cracker unit to generate a steam cracked gas stream, a C4+ hydrocarbon stream, and a C9+ hydrocarbon stream, the middle cut is provided to a first catalytic cracker unit to generate a first cracked product stream, and the heavy cut is provided to a second catalytic cracker unit to generate a second cracked product stream. The steam cracked gas stream is provided to an olefins separation unit to generate at least one light olefin stream. Other effluents from the olefins separation unit and the steam cracker unit are provided to a hydrogenation unit, an aromatic extraction unit, or recycled within the system.

A process for recovery of C.sub.3.sup.+ form gas streams is disclosed. The process includes dividing a feed gas into a first C.sub.3.sup.+-rich stream with a higher content of C.sub.3.sup.+ and a first C.sub.1-C.sub.2-rich stream in a first membrane module, extracting remaining C.sub.3.sup.+ content in the first C.sub.1-C.sub.2-rich stream in a second membrane module and feeding the extracted C.sub.3.sup.+ content to the first membrane module, separating a separator-liquid C.sub.3.sup.+-rich stream with a higher content of C.sub.3.sup.+ than the first C.sub.3.sup.+-rich stream from the first C.sub.3.sup.+-rich stream in a separator, forming a bottoms C.sub.3.sup.+-rich stream with a higher content of C.sub.3.sup.+ than the separator-liquid C.sub.3.sup.+-rich stream in a distillation column and an associated reboiler using thermal energy of the feed gas, and increasing C.sub.3.sup.+ content of the bottoms C.sub.3.sup.+-rich stream by recovering C.sub.3.sup.+ content remaining in vapor phases of the separator and distillation column using a third membrane module.

Presented herein is a facility design for oil production with zero methane emissions. The facility is flexible to allow variable flow rate requirements through the production cycle of the facility. Equipment is modular and easily movable, which reduces upfront construction cost, time to production revenue, the need for steel on facility, and other long-term material resource requirements. The design reduces emission of greenhouse gases, environmental impacts and landowner lease requirements.

Presented herein is a facility design for oil production with zero methane emissions. The facility is flexible to allow variable flow rate requirements through the production cycle of the facility. Equipment is modular and easily movable, which reduces upfront construction cost, time to production revenue, the need for steel on facility, and other long-term material resource requirements. The design reduces emission of greenhouse gases, environmental impacts and landowner lease requirements.

Provided herein are systems and methods for converting CO.sub.2 and a reduction gas such as H.sub.2 or a hydrocarbon to mixtures of paraffins and aromatics suitable for use as aviation fuel.

A method for making a motor fuel includes converting a mixture comprising one or more C.sub.2-C.sub.4 alkenes, synthesis gas, and acetaldehyde to a mixture comprising C.sub.3-C.sub.4 aldehydes and C.sub.5-C.sub.8 aldols; hydrogenating the mixture comprising C.sub.3-C.sub.4 aldehydes and C.sub.5-C.sub.8 aldols to obtain a mixture comprising C.sub.3-C.sub.8 alcohols; converting the C.sub.3-C.sub.8 alcohols into C.sub.6-C.sub.24 paraffins; and isolating a fraction of the C.sub.6-C.sub.24 paraffins. The isolated fraction may be used to formulate a motor fuel.