Indian Oil Corporation Limited

Gautam Thapa

Debasis Bhattacharyya

Terapalli Hari Venkata Devi Prasad

Jagdev Kumar Dixit

Sankara Sri Venkata Ramakumar

Brijesh Kumar

Satyen Kumar Das

Ponoly Ramachandran Pradeep

Biswapriya Das

Ram Mohan Thakur

Satheesh Vetterkunnel Kumaran

Shoeb Hussain Khan

Rajesh

Venkata Hari Prasad Gupta Bandaru

Suresh Kumar Puri

Ravinder Kumar Malhotra

Santanam Rajagopal

Anurag Ateet Gupta

Samik Kumar Hait

Eswar Prasad Dalai

Bandaru Venkata Hariprasadgupta

Pradeep Ponoly Ramachandran

Vinod Kumar Sharma

Vikas Badhan

Om Parkash

Terapalli Hari Devi Prasad

Terapalli Hari Prasad

Rajesh,

Ravinder Kumar Malhorta

An apparatus for supplying additives into a coker drum includes an inlet for supplying a hydrocarbon feed stream into the coker drum and conduits along the circumference of walls of the coker drum. Each conduit has an injection nozzle to supply additives inside the coker drum. An injection control system controls the operation of the injection nozzles such that 1) one or more of the injection nozzles placed within a first distance above a vapour liquid interphase of the hydrocarbon feed stream are configured to supply the additives; and 2) supply of the additive discontinues from a particular injection nozzle when a distance between the injection nozzle and the vapour liquid interphase is less than or equal to a second distance. The apparatus optionally includes a mechanical drive system moving at least one of the conduits based on the level of the vapour liquid interphase in the coker drum.

Method and hardware for supplying additives to the delayed coker drum

The present invention relates to delayed coking of heavy petroleum residue producing petroleum coke and lighter hydrocarbon products. The invented process utilize a pre-cracking reactor for mild thermal cracking of the feedstock and an intermediate separator, before being subjected to higher severity thermal cracking in delayed coking process, resulting in reduction in overall coke yield.

Delayed coking process with pre-cracking reactor

A spent catalyst distributor for distributing spent catalyst in a catalyst regenerator vessel housing a dense phase catalyst bed and a dilute phase catalyst bed. The spent catalyst distributor comprises a conduit comprising a proximal end and a distal end. The conduit projects horizontally or horizontally and downwardly into the regenerator vessel and includes an opening located at the distal end for introducing the spent catalyst at a first location inside the regenerator vessel. The conduit further includes a plurality of orifices located along a length of the conduit between the distal end and an inner wall of the regenerator vessel for introducing the spent catalyst at a plurality of locations inside the regenerator vessel.

Apparatus for distribution of catalyst in fluidized catalytic cracking unit

The present subject matter describes a method and apparatus for operating a delayed coker. The method comprises contacting a vapour produced in a delayed coker-drum with a catalyst maintained in form of a bed, and maintaining a level of said catalyst-bed within pre-defined limits during catalytic-cracking of the vapour. Thereafter, the cracked-vapour is routed to a coker-fractionator column to trigger conversion into one or more hydrocarbon products.

Delayed coker drum and method of operating thereof

An apparatus and a method for mixing and atomizing a hydrocarbon stream is disclosed. The apparatus comprises of an inner conduit having a first inlet for receiving the hydrocarbon stream, and a second inlet for receiving a primary dispersion stream. The inner conduit produces a primary mixture comprising the hydrocarbon stream and the primary dispersion stream. The apparatus further includes an outer conduit having a third inlet for receiving a secondary dispersion stream. Further, said inner and outer conduits together define an annular passage. The distal end of the annular passage defines a second set of orifices for allowing the secondary dispersion stream flowing there-through to come in contact with the primary mixture and thereby dispensing the secondary mixture so obtained through an outlet.

Apparatus and method for converting liquid stream into fine droplets

The present invention relates to a liquid phase additive comprising an alkyl nitrate; a petroleum sulphonates; an aliphatic, aromatic, cyclohexylamines or hetroalkylated lower amines; a hindered phenol based compounds; a phosphate esters and an aliphatic alcohols for use in delayed coking process with decreased coke yield and increased yield of liquid and/or gaseous product and a process for preparing the liquid phase additive. The present invention also relates to a process for thermal cracking of petroleum residue producing petroleum coke and lighter hydrocarbon products by using liquid phase additive.

Liquid phase additive for use in thermal cracking process to improve product yields

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Faridabad, India

Gautam Thapa