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:
Jan. 13, 2015
Filed:
Jun. 01, 2011
Jianhua Yao, Bartlesville, OK (US);
Dhananjay B. Ghonasgi, Bartlesville, OK (US);
Xiaochun Xu, Bartlesville, OK (US);
Larry D. Swinney, Stillwater, OK (US);
Jianhua Yao, Bartlesville, OK (US);
Dhananjay B. Ghonasgi, Bartlesville, OK (US);
Xiaochun Xu, Bartlesville, OK (US);
Larry D. Swinney, Stillwater, OK (US);
Phillips 66 Company, Houston, TX (US);
Abstract
This invention relates to a hydroprocessing process with improved catalyst activity when hydroprocessing petroleum based feedstock or an oxygen containing feedstock. This invention also relates to a hydrotreating process with improved hydrodesulfurization (HDS) activity of a hydrotreating catalyst such as Co/Mo by co-feeding carbon monoxide or its precursors. Such inventive process confirms that adding a small amount of CO to H2 in a hydrotreater for a few days leads to an increase in product sulfur due to the inhibition of CO on the hydrotreating catalyst such as Co/Mo. However, it has been unexpectedly found that after the CO was removed from the hydrogen stream, product sulfur levels decreased to values below they were before CO addition which means the activity of the hydrotreating catalyst increased after the CO treatment.