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:
Sep. 06, 2016
Filed:
Jul. 04, 2011
Ponoly Ramachandran Pradeep, Faridabad, IN;
Sadhullah Mukthiyar, Faridabad, IN;
Gadari Saidulu, Faridabad, IN;
Debasis Bhattacharyya, Faridabad, IN;
Vetterkunnel Kumaran Satheesh, Faridabad, IN;
Ponoly Ramachandran Pradeep, Faridabad, IN;
Sadhullah Mukthiyar, Faridabad, IN;
Gadari Saidulu, Faridabad, IN;
Debasis Bhattacharyya, Faridabad, IN;
Vetterkunnel Kumaran Satheesh, Faridabad, IN;
INDIAN OIL CORPORATION LTD., Kolkata, IN;
Abstract
A two stage Fluid Catalytic Cracking process and an apparatus for simultaneous production of light olefins such as ethylene and propylene and middle distillate range hydrocarbons, wherein a first flow reactor, preferably a downer and a second flow reactor, preferably a riser are operating at varying reaction severities using different catalyst systems with the regenerated catalyst entering the reactors inlet through independent regenerators. Mild cracking of the fresh feedstock is carried out in the first flow reactor of short residence time and the effluent of first flow reactor is separated in an intermediate separator/fractionator followed by re-cracking of the C4 hydrocarbons and naphtha range hydrocarbons, preferably C5-150° C. from the second product separation section and unconverted hydrocarbons (370° C.+) of first flow reactor, in the second flow reactor at higher severity employing different catalyst system.