公开(公告)号：US10739798B2

公开(公告)日：2020-08-11

申请号：US15972974

申请日：2018-05-07

申请人： UOP LLC

发明人： Jorge Charr ,  Donald Eizenga ,  Raul A. Ohaco ,  Ralph P. Davis ,  Christina L. Haasser ,  James W. Harris ,  Kevin Carnes ,  Daliah Papoutsis

IPC分类号： C10G45/72 ,  C10G47/36 ,  G05D23/19 ,  B01J19/00 ,  B01J8/00 ,  G05B23/02 ,  G06F16/21 ,  G06F11/07 ,  G05D7/00

摘要： Systems and methods are disclosed for detecting temperature excursion in a chemical plant or petrochemical plant or refinery. Aspects of the disclosure provide an enhanced control system for a reactor, such as in hydroprocessing. The enhanced control system may provide early warnings of impending undesirable events, directly or indirectly manipulate certain process variables to reduce undesirable outcomes, and/or directly or indirectly manipulate of certain process variables so as to place a reactor unit in a “safe park” state. This may avoid a high temperature trip, depressuration, associated operating risks, allow for faster recovery from temperature excursions, and/or avoid unplanned emergency shutdowns of the reactor, chemical process, plant, or refinery.

公开(公告)号：US20200277531A1

公开(公告)日：2020-09-03

申请号：US16290225

申请日：2019-03-01

申请人： UOP LLC

发明人： James T. Wexler ,  Ralph P. Davis ,  Nickolas Kapaun

IPC分类号： C10G3/00 ,  C10G45/02 ,  C10G67/02 ,  C10G65/02 ,  C10L1/08 ,  C10G45/72

摘要： The process produces a diesel from a biorenewable feedstock by hydrotreating to remove heteroatoms and saturate olefins. The biorenewable feedstock is contacted in a guard bed reactor in the presence of hydrogen to saturate olefins and remove metals to produce a contacted feed stream. The contacted feed stream is then heated in a charge heater to a higher temperature than in the guard bed reactor and hydrotreated in the presence of a hydrotreating hydrogen stream and a hydrotreating catalyst to deoxygenate the contacted feed stream to provide a hydrotreated stream.

公开(公告)号：US20180364747A1

公开(公告)日：2018-12-20

申请号：US15972974

申请日：2018-05-07

申请人： UOP LLC

发明人： Jorge Charr ,  Donald Eizenga ,  Raul A. Ohaco ,  Ralph P. Davis ,  Christina L. Haasser ,  James W. Harris ,  Kevin Carnes ,  Daliah Papoutsis

IPC分类号： G05D23/19 ,  B01J8/00

摘要： Systems and methods are disclosed for detecting temperature excursion in a chemical plant or petrochemical plant or refinery. Aspects of the disclosure provide an enhanced control system for a reactor, such as in hydroprocessing. The enhanced control system may provide early warnings of impending undesirable events, directly or indirectly manipulate certain process variables to reduce undesirable outcomes, and/or directly or indirectly manipulate of certain process variables so as to place a reactor unit in a “safe park” state. This may avoid a high temperature trip, depressuration, associated operating risks, allow for faster recovery from temperature excursions, and/or avoid unplanned emergency shutdowns of the reactor, chemical process, plant, or refinery.