Indian Oil Corporation Limited

Other

Indian Oil Company Ltd

Sanjay Kumar Ray

Satish Makhija

Mohan Prabhu Kuvettu

Sobhan Ghosh

Venkatachalam Krishnan

Gopal Ravichandran

Ram Mohan Thakur

Biswanath Sarkar

Mitra Bhanu Patel

Sukumar Mandal

Kamlesh Gupta

Manoranjan Santra

Shiba Prasad Choudhury

Venkatchalam Krishnan

Asit Kumar Das

Satyen Kumar Das

Akhilesh Kumar Bhatnagar

Arumugam Velayutham Karthikeyani

Jagdev Kumar Dixit

Jayaraj Christopher

Swapan Kumar Ghosh

Ganga Shanker Mishra

Sudipta Roy

Santosh Kumar Chanda

Awadhesh Kumar Sinha

Gopal Ravi Chandran

Ganga Shankar Misra

Umanand Sharma

Christopher J

Kapil Arya

Soban Ghosh

Ventachalam Krishnan

Deepa Megavathu

Nagesh Samant

Mohan Kuvettu Prabhu

Ravichandran Gopal

Krishnan Venkatachalam

Kashi Nath Bhattacharya

Priya Bandhu Chowdhury

Suhas Ranjan Gun

Achinta Kumar Roy

The present disclosure provides a ready-to-use seed composition water, a source of silica, a source of alumina, and Na0, wherein the molar ratio of H20:Na20 ranges from 5 to 20, Na20:SiO2 ranges from 0.4 to 5 and SiO2:Al203 ranges from 1.3 to 5 used in the preparation of a synthetic faujasite zeolite which has high thermal stability and higher crystallite size. It further provides a process for preparing the ready-to-use seed composition for preparation of synthetic faujasite zeolite that requires lower crystallization time. The present disclosure provides a seed composition that does not require maturing time and a reaction gel composition that has low water and soda content. The present disclosure further provides a process for the preparation of synthetic faujasite zeolite by blending seed and reaction gel reaction composition to form a seed gel composition and subjecting it to crystallization.

Ready-to-use seed composition and process thereof

The present invention relates to a cracking catalyst composition for cracking heavy hydrocarbon and processes for preparing the catalyst. The process can include treating zeolite with sodium free basic compound with or without phosphate, treating an alumina with a dilute acid, acidifying a colloidal silica, preparing a fine slurry of clay with a source of phosphate, adding alumina slurry and/or acidified colloidal silica to clay phosphate slurry, adding treated zeolite and spray-drying the slurry and calcining the same to obtain a cracking catalyst having adequate ABD and attrition resistance property.

Process for preparation of liquefied petroleum gas selective cracking catalyst

The present invention relates to an improved process for obtaining sodium silicate alkali solution depleted of sodium salt and enriched in silica from a mother liquor recovered after isolation of molecular sieves and more particularly, the present invention relates to a process for recycling mother liquor obtained after the isolation of molecular sieves for the preparation of fresh molecular sieves or as a binder for producing Fluid Catalytic Cracking (FCC) catalyst.

Process for preparing sodium silicate alkali solution depleted of sodium salt and enriched in silica

A process for the preparation of a stabilized dual zeolite catalyst-comprising two types of zeolites, a low silica molecular sieve and a stabilized high silica zeolite is disclosed. The catalyst is useful for cracking heavier hydrocarbons into lighter useful products.

Stabilized dual zeolite single particle catalyst composition and a process thereof

A process for preparing bi-functional catalyst for Fluid Catalytic Cracking (FCC), that comprises molecular sieves, modified clay and semi-basic alumina and the catalyst for highly effective cracking of high boiling petroleum feedstock to provide simultaneously, enhanced yields of Liquefied Petroleum Gas (LPG) and reduction of undesirable bottoms.

Process for preparation of bi-functional fluid catalytic cracking catalyst composition

The present invention provides a process for the upgradation of petroleum residue into useful fractions by subjecting petroleum residue in the presence of a solvent and ferrous sulphate catalyst to a pressure in the range of 10 atm. to 120 atm., temperature in the range of 380-420&deg; C., for a period in the range of 0-120 minutes, in a reactor vessel, in an inert atmosphere. The charge is then cooled to room temperature and the product gas released through scrubbers. The residue is re-heated, if required, for free flow of liquid product. The resulting liquid product is distilled to obtain useful fractions.

Process for the upgradation of petroleum residue

A process for preparing a hydrocarbon conversion catalyst for use in a Fluid Catalyst Cracking (FCC) unit includes the steps of preparing a modified alumina-silica composite by reacting alumina with an acid to obtain an acidified alumina, aging the acidified alumina for from 0.25 to 60 hours, adding a silica source to the acidified alumina to obtain the composite; preparing a dispersed precursor slurry of the modified alumina-silica composite, and a rare earth exchanged USY zeolite (REUSY) containing at least one rare earth oxide present in an amount ranging from 3.8 to 4.0 wt %, and optionally kaolin clay; spray-drying the slurry to obtain spherical particles; and subjecting the spherical particles to calcination.

Process for the preparation of a catalyst composite

A fluid catalytic cracking additive composition to obtain enhanced yield of Liquified Petroleum Gas in catalytic cracking of high boiling petroleum feed stocks comprising 4 to 20 wt. % aluminum phosphate composite, 1-40 wt. % crystalline molecular sieve Zeolites from the group selected from mordenite ZSM-5, Beta and mixtures thereof and 40-90 wt. % clay.

Process for the preparation of fluid catalytic cracking catalyst additive composition

A synthetic faujasite zeolite and a process for preparing the same which includes forming a reaction mixture consisting essentially of water, a source of silica, a source of alumina, Na,O nd nucleation centers, wherein the reaction mixture has molar ratios of constituents including Na,O/SiO,, 0.4-0.9; SiO,/Al,O,, 7-13; and H,O/Na,O, 30-45, and wherein the nucleation centers have molar ratios of constituents including Na,O/SiO,, 0.5-2.0; SiO,/Al,0,, 10-20; and H,O/Na,O, 10-40; and heating the reaction mixture to a temperature ranging from 90 to 110&deg; C. for a time period ranging from 23 to 29 hours to obtain the synthetic faujasite zeolite, wherein the synthetic faujasite zeolite has a crystallite size ranging from 1500 to 2000 &angst;, a particle size ranging from 4000 to 8000 &angst;, and a retention of surface of more than 70% of that of a parent zeolite, when exchanged with ammonia and subjected to hydrothermal treatment at 650&deg; C. for 3 hours and with 100% steam.

Process for preparing an hydrothermally stable, large crystallite sized, highly crystallite sized, highly crystalline synthetic faujasite zeolite

A process for preparation of fluidized catalytic cracking (FCC) catalyst, comprising silicon stabilized large crystallite sized synthetic faujasite zeolite, aluminum depleted and normal kaolin clay, alumina and silica. The cracking catalyst is highly active and selective for bottom upgradation, it produces less coke and higher gasoline and total cycle oil (TCO) and possesses improved metal tolerance properties when evaluated and compared with a commercial catalyst under conditions of a typical FCC unit in a petroleum refinery.

Process for the preparation of fluidized catalytic cracking (FCC)

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Haryana, India

Sanjay Kumar Ray