The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 18, 2025
Filed:
Dec. 30, 2021
Exxonmobil Chemical Patents Inc., Baytown, TX (US);
Thomas T. Hirst, Houston, TX (US);
George Stephens, Huffman, TX (US);
David Spicer, Houston, TX (US);
ExxonMobil Engineering and Technology Company, Spring, TX (US);
Abstract
Processes and systems for pyrolysing a hydrocarbon. In some examples, the process can include mixing a cooled hydrocarbon effluent and a cooled de-coking effluent to produce a combined effluent. The combined effluent can be introduced into an inlet conduit of a separator under conditions that provide >80 wt. % of the plurality of coke particles with a Stokes number of >10. From a first exit conduit of the separator >55 wt. % of the plurality of coke particles in the combined effluent can be removed, and from a second exit conduit of the separator a coke-lean hydrocarbon effluent that includes <45 wt. % of the plurality of coke particles in the combined effluent can be removed. The first exit conduit and the second exit conduit can be coupled to the inlet conduit.