公开(公告)号：US20210188747A1

公开(公告)日：2021-06-24

申请号：US17055284

申请日：2019-06-11

申请人： HALDOR TOPSØE A/S

发明人： Søren Grønborg ESKESEN ,  Per Juul DAHL ,  Emil Andreas TJÄRNEHOV ,  Max THORHAUGE

IPC分类号： C07C29/154 ,  B01J23/80 ,  B01J19/00 ,  C07C29/152

摘要： A process for the production of methanol from synthesis gas via an equilibrium reaction is conducted in a methanol preconverter within a certain operational window, said operational window being defined by the area below an approximately linear curve of the partial pressure of carbon monoxide vs. the boiling water temperature for water temperatures between 210 and 270° C. Methanol of different product grades may be obtained by operating in specific areas of the operational window.

公开(公告)号：US20210221758A1

公开(公告)日：2021-07-22

申请号：US17055399

申请日：2019-06-11

申请人： HALDOR TOPSØE A/S

发明人： Søren Grønborg ESKESEN ,  Per Juul DAHL ,  Emil Andreas TJÄRNEHOV ,  Max THORHAUGE

IPC分类号： C07C29/154 ,  B01J21/04 ,  B01J23/80 ,  B01J19/18

摘要： The deterioration of methanol synthesis catalysts that is caused by iron poisoning of the catalyst is counteracted by using a catalyst containing a maximum of 100 ppmw Fe in the synthesis process. The method is especially useful in a methanol synthesis plant comprising a make-up gas compressor and a synthesis reactor in a methanol loop with a once-through pre-converter installed between the make-up gas compressor and the methanol loop.