The present invention provides systems and methods for simultaneously producing a high-purity helium gas product, a methanol-water liquid mixture, and a methane-rich fuel product from a hydrogen-rich feedstock gas containing helium by treating the hydrogen-rich feedstock gas containing helium and carbon dioxide in a reverse water gas shift unit (1500) to produce carbon monoxide, which is then treated in a methanol production unit (300) and a methanol absorption unit (400) to produce a methanol-aqueous solution and a methanol-free gas. The methanol-free gas is then treated in a methane production unit (500) to produce methane, which is then treated in a carbon dioxide recovery membrane unit (1100) and a cryogenic nitrogen rejection unit (600) to produce the methanol-water liquid mixture, the methane-rich fuel product, and a helium-rich gas. The helium-rich gas is then treated to produce the high-purity helium gas product.

A method for producing green olefins and green gasoline from renewable sources, the method including: providing CO.sub.2 and hydrogen as feed to produce methanol in a methanol reactor, to produce an MTO reaction effluent, reacting the MTO reaction effluent in a plurality of separation columns to separate hydrocarbons, wherein the plurality of separation columns includes a Deethanizer column, a Depropanizer column, and a Debutanizer column, hydrogenating a fraction of separated hydrocarbons in the Debutanizer column with the hydrogen in a hydrogenation reactor, wherein the fraction of separated hydrocarbons from the Debutanizer column includes C.sub.5+ hydrocarbons; producing the green gasoline and Liquefied Petroleum Gas (LPG) by stabilizing the hydrogenated hydrocarbons in a gasoline stabilizer column; and producing the olefins by separating ethylene from C.sub.2 hydrocarbons using a C.sub.2 splitter column and by separating propylene from C.sub.3 hydrocarbons using a C.sub.3 splitter column.

A reforming system is provided for autothermal reforming of a by-product stream rich in paraffins of a gasoline synthesis plant incorporating the reforming system. The invention provides an overall more efficient feed-to-gasoline system and process.

A reforming system is provided for autothermal reforming of a by-product stream rich in paraffins of a gasoline synthesis plant incorporating the reforming system. The invention provides an overall more efficient feed-to-gasoline system and process.

A method for synthesis of methanol from a gas that contains carbon dioxide comprises generating nonthermal plasma in a chamber; inducing dissociation of CO2 from the gas to CO and O by introducing the gas into the chamber while sustaining the nonthermal plasma in the chamber; and introducing water into the chamber, thereby inducing hydrogenation of CO to methanol.

The present disclosure relates generally to processes for performing an integrated Fischer-Tropsch synthesis of hydrocarbons using methanol. In particular, the disclosure relates to a process comprising: providing a first feed stream comprising H.sub.2 and CO.sub.2; contacting the first feed stream with a hydrogenation catalyst for form a first product stream comprising methanol; providing a second feed stream comprising at least a portion of the methanol of the first product stream; contacting the second feed stream with a methanol decomposition catalyst to form a second product stream comprising CO and H.sub.2; providing a third feed stream comprising H.sub.2 and at least a portion of the CO of the second product stream; contacting the third feed stream with a Fischer-Tropsch catalyst to provide a third product stream comprising C.sub.5+ hydrocarbons.

The present disclosure relates generally to processes for performing an integrated Fischer-Tropsch synthesis of hydrocarbons using methanol. In particular, the disclosure relates to a process comprising: providing a first feed stream comprising H.sub.2 and CO.sub.2; contacting the first feed stream with a hydrogenation catalyst for form a first product stream comprising methanol; providing a second feed stream comprising at least a portion of the methanol of the first product stream; contacting the second feed stream with a methanol decomposition catalyst to form a second product stream comprising CO and H.sub.2; providing a third feed stream comprising H.sub.2 and at least a portion of the CO of the second product stream; contacting the third feed stream with a Fischer-Tropsch catalyst to provide a third product stream comprising C.sub.5+ hydrocarbons.

The present disclosure relates to a method for preparing methanol based on carbon dioxide capture, a method for preparing ethylene glycol and an environment-friendly polyester. The method comprises the following steps: capturing and purifying a byproduct high-concentration carbon dioxide gas flow in a petroleum refining process into high-purity carbon dioxide, and then sequentially performing hydrogenation reaction in three-stage fixed bed reactors to prepare green methanol, wherein a copper-zinc-calcium-magnesium-aluminum hydrogenation catalyst is used in the first-stage and third-stage reactors, and a copper-zirconium-titanium-vanadium deposition hydrogenation catalyst is used in the second-stage reactor. The green methanol can be prepared into ethylene glycol through an MTO process, ethylene oxidation and ethylene oxide hydrolysis. The ethylene glycol and terephthalic acid (PTA) can be prepared into the environment-friendly carbon-reducing polyester through slurry preparation, esterification reaction and polymerization reaction. In the esterification and polymerization processes, specific esterification catalysts and composite stabilizers are added to improve the performance.

The present disclosure relates to a method for preparing methanol based on carbon dioxide capture, a method for preparing ethylene glycol and an environment-friendly polyester. The method comprises the following steps: capturing and purifying a byproduct high-concentration carbon dioxide gas flow in a petroleum refining process into high-purity carbon dioxide, and then sequentially performing hydrogenation reaction in three-stage fixed bed reactors to prepare green methanol, wherein a copper-zinc-calcium-magnesium-aluminum hydrogenation catalyst is used in the first-stage and third-stage reactors, and a copper-zirconium-titanium-vanadium deposition hydrogenation catalyst is used in the second-stage reactor. The green methanol can be prepared into ethylene glycol through an MTO process, ethylene oxidation and ethylene oxide hydrolysis. The ethylene glycol and terephthalic acid (PTA) can be prepared into the environment-friendly carbon-reducing polyester through slurry preparation, esterification reaction and polymerization reaction. In the esterification and polymerization processes, specific esterification catalysts and composite stabilizers are added to improve the performance.

A process for the synthesis of methanol comprising the steps of: (i) passing a first synthesis gas mixture comprising a make-up gas and a loop recycle gas stream through a first synthesis reactor containing a cooled methanol synthesis catalyst to form a first product gas stream, (ii) recovering methanol from the first product gas stream thereby forming a first methanol-depleted gas mixture, (iii) passing at least a portion of the first methanol-depleted gas mixture through a second synthesis reactor containing a cooled methanol synthesis catalyst to form a second product gas stream, (iv) recovering methanol from the second product gas stream thereby forming a second methanol-depleted gas mixture, (v) passing the second methanol-depleted gas mixture through a third synthesis reactor containing a cooled methanol synthesis catalyst to form a third product gas stream, and (vi) recovering methanol from the third product gas stream thereby forming a third methanol-depleted gas mixture.