Methods for reducing fouling in tar upgrading processes
Номер патента: EP4413098A1
Опубликовано: 14-08-2024
Автор(ы): Gaurav Agrawal, Sundar Narayanan, Teng Xu
Принадлежит: ExxonMobil Chemical Patents Inc
Опубликовано: 14-08-2024
Автор(ы): Gaurav Agrawal, Sundar Narayanan, Teng Xu
Принадлежит: ExxonMobil Chemical Patents Inc
Реферат: The present disclosure generally relates to methods for reducing fouling in tar upgrading processes and to apparatus for carrying out such processes. In some embodiments, a method is provided that includes providing a first tar stream, combining the first tar stream with a utility fluid to form a first process stream having a viscosity lower than that of the first tar stream, and heating the first process stream in a pre-heater under liquid phase conditions without feeding molecular hydrogen gas into the pre-heater to form a second process stream exiting the pre-heater.
Method for determining the source of fouling in thermal conversion process units
Номер патента: EP1567615A1. Автор: Michael Siskin,Leo Dale Brown,William Neergaard Olmstead,Peter Sheng-Shyong Maa. Владелец: ExxonMobil Research and Engineering Co. Дата публикации: 2005-08-31.