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1.发明公开公开(公告)号：US20240247194A1
公开(公告)日：2024-07-25
申请号：US18405762
申请日：2024-01-05
发明人： Kara R. Radford , David Spicer , Saurabh S. Maduskar , Theodore W. Walker , Alison M. Miller , Steven M. Slack
摘要： Processes for removing deposits from a pump-around loop or simply loop. The process can include isolating a first and a second end of the loop in fluid communication with a vessel to provide an isolated section. The isolated section can include a first conduit disposed within a convection section of a steam cracking furnace or a heat exchanger that is external to the steam cracking furnace that can include char therein. The first end can be connected to an aqueous fluid/oxidant source. The second end can be connected to a second conduit disposed within the convection section. An aqueous fluid/oxidant mixture can be introduced into the first end that can be heated by flowing through the isolated section. The heated mixture can flow through the second conduit to produce a second heated mixture that can be introduced into a radiant section of the steam cracking furnace.
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公开(公告)号：US12060527B2
公开(公告)日：2024-08-13
申请号：US18166852
申请日：2023-02-09
CPC分类号： C10G11/182 , C10G2300/1003 , C10G2300/1007 , C10G2300/1011 , C10G2300/1074
摘要： The present disclosure provides methods and systems for co-processing a hydrocarbon feed in an FCC system with a second feed of a biomass-derived pyrolysis oil and a third feed of a plastic-derived pyrolysis oil and/or lubricant. A method of co-processing fluid catalytic cracking feeds, includes: introducing a hydrocarbon feed to a fluid catalytic cracking reactor, wherein the hydrocarbon feed comprises hydrocarbons; introducing a biomass feed to the fluid catalytic cracking reactor wherein the biomass feed comprises a biomass-derived pyrolysis oil; introducing a waste feed to the fluid catalytic cracking reactor, wherein the waste feed comprises a plastic, a plastic-derived pyrolysis oil, a lubricant, or a combination thereof; and reacting at least the hydrocarbon feed, the biomass feed, and the waste feed in the presence of one or more fluid catalytic cracking catalysts in the fluid catalytic cracking reactor to produce cracked products.
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3.发明公开公开(公告)号：US20240247193A1
公开(公告)日：2024-07-25
申请号：US18405088
申请日：2024-01-05
发明人： Kara R. Radford , David Spicer , Saurabh S. Maduskar , Theodore W. Walker , Alison M. Miller , Steven M. Slack
CPC分类号： C10G1/10 , C10G1/002 , C10G9/20 , C10G9/36 , C10G70/046 , C10G2300/1003 , C10G2300/1033 , C10G2300/1037 , C10G2300/202 , C10G2300/4006 , C10G2300/4037 , C10G2300/4081 , C10G2300/802 , C10G2300/807 , C10G2400/20
摘要： Processes and systems for hydrocarbon pyrolysis. In some embodiments, a hydrocarbon can be heated within a convection section of a steam cracking furnace and combined with an aqueous fluid to produce a heated mixture. A heavy feed that includes a plastic material can be introduced into a vessel and a portion of the plastic material can be cracked therein. Liquid and vapor effluents exiting the vessel can be obtained. At least a portion of the liquid effluent can be heated to produce a heated fluid stream that can be recycled to the vessel. The vapor effluent can be combined with the heated mixture to produce a combined mixture that can be heated within the convection section to produce a heated combined mixture. At least a portion of the heated combined mixture can be cracked within a radiant section of the steam cracking furnace to produce a steam cracker effluent.
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