PROPYLENE VIA METATHESIS WITH LOW OR NO ETHYLENE

    公开(公告)号:MY169237A

    公开(公告)日:2019-03-19

    申请号:MYPI2015000614

    申请日:2013-09-11

    Abstract: A process for producing propylene is disclosed, including: fractionating a mixed C4 hydrocarbon stream to recover a first fraction comprising isobutene and a second fraction comprising 2-butene; contacting the first fraction with a first metathesis catalyst in a first metathesis reaction zone; recovering an effluent from the first metathesis reaction zone comprising at least one of ethylene, propylene, unreacted isobutene, CS olefins, and C6 olefins; contacting the second fraction and the ethylene in the effluent with a second metathesis catalyst in a second metathesis reaction zone; recovering an effluent from the second reaction zone comprising at least one of unreacted ethylene, propylene, unreacted 2-butene, fractionating the effluent from the first metathesis reaction zone and the effluent from the second metathesis reaction zone to recover an ethylene fraction, a propylene fraction, one or more C4 fractions, and a fraction comprising at least one of C5 and C6 olefins. (Figure I)

    ОБЪЕДИНЕННЫЕ УСТАНОВКИ ПИРОЛИЗА И ГИДРОКРЕКИНГА ДЛЯ ПРЕВРАЩЕНИЯ СЫРОЙ НЕФТИ В ХИМИЧЕСКИЕ ПРОДУКТЫ

    公开(公告)号:RU2727803C1

    公开(公告)日:2020-07-24

    申请号:RU2019134180

    申请日:2018-07-18

    Abstract: Изобретениеотноситсяк объединенномуспособупиролизаи гидрокрекингадляконверсииуглеводороднойсмесис получениемолефинов, гдеспособвключает: смешиваниенеотбензиненнойсыройнефтии газойляс образованиемуглеводороднойсмеси; нагреваниеуглеводороднойсмесив нагревателедляиспарениячастиуглеводородовв углеводороднойсмесии образованиянагретойуглеводороднойсмеси; разделениенагретойуглеводороднойсмесив первомсепараторенапервуюпаровуюфракциюи первуюжидкуюфракцию; смешиваниеводяногопарас первойпаровойфракцией, перегревполученнойв результатесмесив конвекционнойзонеи подачуперегретойсмесив первыйрадиантныйзмеевикв радиантнойзонереакторапиролизадлятого, чтобыосуществитьтермическийкрекингсодержащихсяв нейуглеводородовс образованиемолефинов; подачупервойжидкойфракцииилиеечастии водородав реакторнуюсистемугидрокрекинга, контактированиепервойжидкойфракциис катализаторомгидрокрекингадлякрекингачастиуглеводородовв первойжидкойфракциив олефиныи получениевыходящегопотокаизреакторнойсистемыгидрокрекинга; выделениенепрореагировавшеговодородаизуглеводородовв выходящемпотоке; разделениенафракцииуглеводородовв выходящемпотокес образованиемдвухилиболеефракцийуглеводородов, включающихгазойль. Изобретениетакжекасаетсявариантаобъединенногоспособапиролизаи гидрокрекингадляконверсииуглеводороднойсмесис получениемолефинов, способаполученияолефинови/илидиенов, системедляполученияолефинови/илидиенов. Техническийрезультат - высокийвыходцелевыхолефинов, диенов, диолефинови ароматическихсоединений. 4 н. и 15 з.п. ф-лы, 7 ил., 4 табл., 2 пр.

    ABSORBER DEMETHANIZER FOR FCC PROCESS

    公开(公告)号:MY163710A

    公开(公告)日:2017-10-13

    申请号:MYPI2013001864

    申请日:2011-10-21

    Abstract: A PROCESS FOR RECOVERING ETHYLENE IS DISCLOSED, THE PROCESS INCLUDING: RECOVERING A ETHYLENE-CONTAINING STREAM COMPRISING METHANE, ETHYLENE, AND NITROGEN OXIDES FROM AT LEAST ONE OF AN ETHYLENE PRODUCTION PROCESS AND AN ETHYLENE RECOVERY PROCESS; SEPARATING THE ETHYLENE-CONTAINING STREAM VIA EXTRACTIVE DISTILLATION USING AT LEAST ONE C₂+ HYDROCARBON ABSORBENT TO PRODUCE AN OVERHEADS FRACTION COMPRISING METHANE AND NITROGEN OXIDES AND A BOTTOMS FRACTION COMPRISING THE AT LEAST ONE C₂- HYDROCARBON ABSORBENT AND ETHYLENE; WHEREIN THE SEPARATING COMPRISES OPERATING THE EXTRACTIVE DISTILLATION AT TEMPERATURES AND PRESSURES SUFFICIENT TO PREVENT ANY SUBSTANTIAL CONVERSION OF NITROGEN OXIDES TO N₂O₃. (FIGURE 1)

    ABSORBER DEMETHANIZER FOR FCC PROCESS

    公开(公告)号:SG190853A1

    公开(公告)日:2013-07-31

    申请号:SG2013039235

    申请日:2011-10-21

    Abstract: A process for recovering ethylene is disclosed, the process including: recovering a ethylene-containing stream comprising methane, ethylene, and nitrogen oxides from at least one of an ethylene production process and an ethylene recovery process; separating the ethylene-containing stream via extractive distillation using at least one C2+ hydrocarbon absorbent to produce an overheads fraction comprising methane and nitrogen oxides and a bottoms fraction comprising the at least one C2+ hydrocarbon absorbent and ethylene; wherein the separating comprises operating the extractive distillation at temperatures and pressures sufficient to prevent any substantial conversion of nitrogen oxides to N203.

    PROPYLENE VIA METATHESIS WITH LOW OR NO ETHYLENE

    公开(公告)号:CA2885002C

    公开(公告)日:2016-11-29

    申请号:CA2885002

    申请日:2013-09-11

    Abstract: A process for producing propylene is disclosed, including: fractionating a mixed C4 hydrocarbon stream to recover a first fraction comprising isobutene and a second fraction comprising 2-butene; contacting the first fraction with a first metathesis catalyst in a first metathesis reaction zone; recovering an effluent from the first metathesis reaction zone comprising at least one of ethylene, propylene, unreacted isobutene, C5 olefins, and C6 olefins; contacting the second fraction and the ethylene in the effluent with a second metathesis catalyst in a second metathesis reaction zone; recovering an effluent from the second reaction zone comprising at least one of unreacted ethylene, propylene, unreacted 2-butene, fractionating the effluent from the first metathesis reaction zone and the effluent from the second metathesis reaction zone to recover an ethylene fraction, a propylene fraction, one or more C4 fractions, and a fraction comprising at least one of C5 and C6 olefins.

    PROPYLENE VIA METATHESIS WITH LOW OR NO ETHYLENE

    公开(公告)号:SG11201501890YA

    公开(公告)日:2015-04-29

    申请号:SG11201501890Y

    申请日:2013-09-11

    Abstract: A process for producing propylene is disclosed, including: fractionating a mixed C4 hydrocarbon stream to recover a first fraction comprising isobutene and a second fraction comprising 2-butene; contacting the first fraction with a first metathesis catalyst in a first metathesis reaction zone; recovering an effluent from the first metathesis reaction zone comprising at least one of ethylene, propylene, unreacted isobutene, C5 olefins, and C6 olefins; contacting the second fraction and the ethylene in the effluent with a second metathesis catalyst in a second metathesis reaction zone; recovering an effluent from the second reaction zone comprising at least one of unreacted ethylene, propylene, unreacted 2-butene, fractionating the effluent from the first metathesis reaction zone and the effluent from the second metathesis reaction zone to recover an ethylene fraction, a propylene fraction, one or more C4 fractions, and a fraction comprising at least one of C5 and C6 olefins.

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