公开(公告)号：US20240392197A1

公开(公告)日：2024-11-28

申请号：US18691105

申请日：2022-10-03

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Mark A. Nierode ,  Rodney S. Smith ,  Michael A. Radzicki ,  Donald J. Norris ,  Kapil Kandel ,  Tania M. Almazan

IPC: C10G9/36 ,  B01D53/047 ,  B01D53/14 ,  C01B3/56 ,  C10G55/04 ,  C10K3/04

Abstract: Processes for upgrading a hydrocarbon for a predetermined period of time. The process can include determining an amount of one or more contaminant-containing compositions that will be present in a pyrolysis effluent based, at least in part, on a composition of a hydrocarbon feed to be steam cracked, a. temperature the hydrocarbon feed will be heated at during steam cracking, a residence time the hydrocarbon feed will be heated at the temperature during steam cracking, or a combination thereof. In some examples, the process can also include taking one or more steps to allow the hydrocarbon feed to be steam cracked for at least as long as a predetermined, period of time, such as controlling process conditions within one or more separation stages to favor certain product compositions and/or introducing a predetermined amount of one or more materials into various locations of the process, or any combination thereof.

公开(公告)号：US20220306949A1

公开(公告)日：2022-09-29

申请号：US17616858

申请日：2020-06-17

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Mark A. Nierode ,  Magaly C. Barroeta ,  Chee-Kong Leong ,  John E. Asplin ,  Asit K. Mondal

IPC: C10G55/04

Abstract: The present disclosure provides for processes for producing light hydrocarbons. In an embodiment, a process includes pressurizing the hydrocarbon feed in one or more pumps producing a pressurized hydrocarbon feed and heating the pressurized hydrocarbon feed in one or more heat exchangers to produce a heated hydrocarbon feed. The process includes mixing the heated hydrocarbon feed with water and separating an inter-stage hydrocarbon feed from interstage water. The process includes mixing the inter-stage hydrocarbon feed with water and separating a desalted hydrocarbon feed from outlet water. The process includes pyrolysing the desalted hydrocarbon feed in a steam cracker.