This invention relates to a new process to directly produce transportation gasoline from synthesis gas containing principally carbon monoxide, carbon dioxide, and hydrogen. The process entails three sequential catalytic stages with intermediate heat exchange to provide the requisite temperature in each stage, but with no interstage separation. The recycle loop enhances the conversion of the synthesis gas to the desired products and also serves as heat sink for the highly exothermic reactions involved in each stage.

A method for the synthesis of methanol includes the steps of feeding a hydrogen-containing stream from a hydrogen recovery stage into a synthesis gas stream containing hydrogen and carbon oxides, and feeding the synthesis gas stream to a primary reactor stage for the catalytic and partial conversion of the synthesis gas stream into a gas mixture containing water, methanol, and residual gas, and further including the step of feeding a first portion of the residual gas to the hydrogen recovery stage for separation into the hydrogen-containing stream and a waste gas stream. The method is characterized in that a second portion of the residual gas is fed to a secondary reactor stage for further catalytic and at least partial conversion into a methanol-containing product stream.

A method for the synthesis of methanol includes the steps of feeding a hydrogen-containing stream from a hydrogen recovery stage into a synthesis gas stream containing hydrogen and carbon oxides, and feeding the synthesis gas stream to a primary reactor stage for the catalytic and partial conversion of the synthesis gas stream into a gas mixture containing water, methanol, and residual gas, and further including the step of feeding a first portion of the residual gas to the hydrogen recovery stage for separation into the hydrogen-containing stream and a waste gas stream. The method is characterized in that a second portion of the residual gas is fed to a secondary reactor stage for further catalytic and at least partial conversion into a methanol-containing product stream.

A process for the production of formaldehyde-stabilised urea is described comprising the steps of: (a) generating a synthesis gas comprising hydrogen, nitrogen, carbon monoxide, carbon dioxide and steam in a synthesis gas generation unit, (b) subjecting the synthesis gas to one or more stages of water-gas shift in one or more water-gas shift reactors to form a shifted gas; (c) recovering carbon dioxide from the shifted gas in a carbon dioxide removal unit to form a carbon dioxide-depleted synthesis gas; (d) synthesising methanol from the carbon dioxide-depleted synthesis gas in a methanol synthesis unit and recovering the methanol and a methanol synthesis off-gas comprising nitrogen, hydrogen and residual carbon monoxide; (e) subjecting at least a portion of the recovered methanol to oxidation with air in a formaldehyde production unit; (f) subjecting the methanol synthesis off-gas to methanation in a methanation reactor containing a methanation catalyst to form an ammonia synthesis gas; (g) synthesising ammonia from the ammonia synthesis gas in an ammonia production unit and recovering the ammonia; (h) reacting a portion of the ammonia and at least a portion of the recovered carbon dioxide stream in a urea production unit to form a urea stream; and (i) stabilising the urea by mixing the urea stream and a stabiliser prepared using formaldehyde recovered from the formaldehyde production unit, wherein a portion of the synthesis gas generated by the synthesis gas generation unit by-passes either the one or more water-gas shift reactors; the carbon dioxide removal unit; or the one or more water-gas shift reactors and the carbon dioxide removal unit.

A process is described for the synthesis of methanol comprising the steps of: (i) passing a first synthesis gas mixture comprising a make-up gas 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) combining the first methanol-depleted gas mixture with a loop recycle gas stream to form a second synthesis gas mixture, (iv) passing the second synthesis gas mixture through a second synthesis reactor containing a cooled methanol synthesis catalyst to form a second product gas stream, (v) recovering methanol from the second product gas stream thereby forming a second methanol-depleted gas mixture, and (vi) using at least part of the second methanol-depleted gas mixture as the loop recycle gas stream, wherein the first synthesis reactor has a higher heat transfer per cubic metre of catalyst than the second synthesis reactor, none of the loop recycle gas stream is fed to the first synthesis gas mixture and the recycle ratio of the loop recycle gas stream to form the second synthesis gas mixture is in the range 1.1:1 to 6:1.

A process is described for the synthesis of methanol comprising the steps of: (i) passing a first synthesis gas mixture comprising a make-up gas 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) combining the first methanol-depleted gas mixture with a loop recycle gas stream to form a second synthesis gas mixture, (iv) passing the second synthesis gas mixture through a second synthesis reactor containing a cooled methanol synthesis catalyst to form a second product gas stream, (v) recovering methanol from the second product gas stream thereby forming a second methanol-depleted gas mixture, and (vi) using at least part of the second methanol-depleted gas mixture as the loop recycle gas stream, wherein the first synthesis reactor has a higher heat transfer per cubic metre of catalyst than the second synthesis reactor, none of the loop recycle gas stream is fed to the first synthesis gas mixture and the recycle ratio of the loop recycle gas stream to form the second synthesis gas mixture is in the range 1.1:1 to 6:1.

Recycled content neopentyl glycol (r-NPG) is produced using a process and system that applies physical and/or credit-based recycled content from one or more feed materials to the NRG produced from the feed materials.

In accordance with the present invention, disclosed herein is a method comprising the steps for producing lower molecular weight C1-C5 hydrocarbons and alcohols. Also disclosed herein, are systems utilized to produce low molecular weight C1-C5 hydrocarbons and alcohols.

The present relates to a process comprising the steps of Providing a syngas stream with module M to a Methanol loop, In the Methanol loop passing the syngas though a first Methanol reactor, obtaining a first effluent from the first Methanol reactor, Cooling the first effluent and condensing at least part of the produced methanol Separating the first cooled effluent into at least a first raw Methanol stream and a first unreacted stream, Heating the first unreacted stream, Passing the first heated unreacted stream through a second methanol reactor, Obtaining a second effluent from the second methanol reactor, Separating the second effluent into at least a second raw Methanol stream and a second unreacted stream, and Recycling the second unreacted stream to the syngas stream.

The present relates to a process comprising the steps of Providing a syngas stream with module M to a Methanol loop, In the Methanol loop passing the syngas though a first Methanol reactor, obtaining a first effluent from the first Methanol reactor, Cooling the first effluent and condensing at least part of the produced methanol Separating the first cooled effluent into at least a first raw Methanol stream and a first unreacted stream, Heating the first unreacted stream, Passing the first heated unreacted stream through a second methanol reactor, Obtaining a second effluent from the second methanol reactor, Separating the second effluent into at least a second raw Methanol stream and a second unreacted stream, and Recycling the second unreacted stream to the syngas stream.