Process For Producing Methanol And Ammonia
AssigneeJohnson Matthey Davy Technologies Limited
InventorsAlan Ingham, Madhanakrishnan Janardhanan, John David Pach, Kar Chi Yiu
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AssigneeJohnson Matthey Davy Technologies Limited
InventorsAlan Ingham, Madhanakrishnan Janardhanan, John David Pach, Kar Chi Yiu
Estimating the term…
A process for the co-production of methanol and ammonia is described comprising the steps of: (a) forming a first synthesis gas stream by reacting a first portion of a hydrocarbon feedstock and steam in a steam reformer, (b) forming a second synthesis gas stream in parallel to the first synthesis gas stream by reacting a second portion of the hydrocarbon feedstock with an oxygen-containing gas and steam in an autothermal reformer, (c) synthesising methanol from a first process gas comprising the first synthesis gas stream, and (d) synthesising ammonia from a second process gas prepared from the second synthesis gas stream, wherein a purge stream containing hydrogen is recovered from the methanol synthesis step (c) and a portion of the purge gas stream is fed to the autothermal reformer and/or the second synthesis gas in step (b).
A system for co-producing methanol and ammonia according to the process of claim 1, comprising (i) a source of a hydrocarbon feedstock, (ii) a steam reformer configured to reform a first portion of the hydrocarbon feedstock and steam to form a first synthesis gas stream, (iii) an autothermal reformer configured to reform a second portion of the hydrocarbon feedstock with an oxygen-containing gas and steam to form a second synthesis gas stream, (iv) a methanol production unit to synthesis methanol from a first process gas comprising the first synthesis gas stream, (v) an ammonia production unit to synthesise ammonia from a second process gas prepared from the second synthesis gas stream, and (vi) a methanol purge gas recovery conduit that provides a portion of a methanol purge gas from the methanol production unit to the autothermal reformer and/or the second synthesis gas stream.
Dependencies are inferred from the claim text.