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:
Feb. 28, 2023
Filed:
Apr. 01, 2022
Indian Oil Corporation Limited, Maharashtra, IN;
Ponoly Ramachandran Pradeep, Faridabad, IN;
Prantik Mondal, Faridabad, IN;
Shahil Siddiqui, Faridabad, IN;
Ramu Emmandi, Faridabad, IN;
Satyen Kumar Das, Faridabad, IN;
Madhusudan Sau, Faridabad, IN;
Gurpreet Singh Kapur, Faridabad, IN;
Sankara Sri Venkata Ramakumar, Faridabad, IN;
INDIAN OIL CORPORATION LIMITED, Mumbai, IN;
Abstract
The furnace of a delayed coking unit which is utilized for heating residue feeds to high temperatures can suffer from decrease in run length and fouling caused by caustic carryover from the upstream desalter unit. An antifoulant additive for preventing caustic induced fouling of thermal cracker furnace tubes is disclosed. The described antifoulant additive acts by converting the inorganic caustic compound such as NaOH to naphthenate salt of the metal as well as by reducing the fouling tendency of the whole feedstock, thereby making it ineffective in causing coking reaction. The additive finds application in thermal residue upgradation furnaces such as delayed coking unit, visbreaker, etc.