Indian Oil Corporation Limited

Arjun Kumar Kottakuna

Sankara Sri Venkata Ramakumar

Debasis Bhattacharyya

Sanjiv Kumar Mazumdar

Satyen Kumar Das

Ponoly Ramachandran Pradeep

Terapalli Hari Venkata Devi Prasad

Madhusudan Sau

Sankara Sri Ramakumar

Terapalli Hari Prasad

Rajesh

Kashyapkumar Mahendra Pastagia

Mahendra P K

Rajesh,

The present invention relates to a novel process with lower recycle ratio while eliminating the need for quench column for production of superior quality coke conforming to specifications of anode grade coke. The process of the present invention enables production of lower amounts of coke and fuel oil yields.

Process for production of superior quality coke

A delayed coking furnace () for heating coker feedstock () is disclosed. The furnace () includes a first heating zone () adapted to provide heat to the coker feedstock () through a convective heat transfer and then a second heating zone () positioned below the first heating zone () and adapted to heat the coker feedstock () through radiative heat transfer, wherein the second heating zone () include a lower portion and an upper portion. Further, said furnace () includes a plurality of burners () located at the lower portion of the second heating zone () and at least one baffle () disposed in the upper portion of the second heating zone (). Further, the present disclosure provides that the at least one baffle () is adapted to increase a convective heat transfer coefficient associated with a flue gas flowing from the second heating zone () to the first heating zone ().

Delayed coking furnace for heating coker feedstock

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

Two stage thermal cracking process with multistage separation system

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 and a reactor furnace for mild thermal cracking of the feedstock and an intermediate separator, before being subjected to higher severity thermal cracking treatment in a coker furnace and a coking drums, resulting in reduction in overall coke yield.

Delayed coking process with pre-cracking reactor

The present invention relates to crude oil processing, particularly related to conversion of crude oil containing high amount of naphthenic acid compounds to lighter hydrocarbon materials with minimum capital expenditure. The invented process utilizes a novel scheme for high TAN crude oils by employing thermal cracking process to maximize the residue conversion to valuable products, which require minimum modifications in unit metallurgies and corrosion inhibitor injection schemes in refineries.

Process for conversion of high acidic crude oils

The present invention relates to a process and system for complete conversion of crude oils by integrating delayed coking process, high severity catalytic cracking process and naphtha cracking processes along with olefin recovery section, aromatic recovery section and gasifier section to maximize the crude oil conversion to valuable products like light olefins, aromatics and chemicals.

Process for the conversion of crude oil to light olefins, aromatics and syngas

The present invention relates to resid processing, particularly related to conversion of resid material with maximum recovery of lighter hydrocarbons. The invented process utilizes a novel scheme for integration of solvent de-asphalting and delayed coking processes to maximize the residue conversion to valuable products, with cleaner quality of middle distillates and fuel oil products, in comparison with other integrated solvent de-asphalting and delayed coking schemes. This process also has an additional flexibility to vary the recycle quantity, without impacting fractionator operation of the delayed coking section, which further enhances the product recovery and achieves maximum conversion of the resid feedstock, with minimum impact on liquid product properties.

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Faridabad, India

Arjun Kumar Kottakuna