Indian Oil Corporation Limited

Latoor Lal Saroya

Debasis Bhattacharyya

Asit Kumar Das

Sobhan Ghosh

Satish Makhija

Sukumar Mandal

Satyen Kumar Das

Arumugam Velayutham Karthikeyani

Jagdev Kumar Dixit

Manoranjan Santra

Ganga Shanker Mishra

Pankaj Kumar Kasliwal

Marri Rama Rao

Arvind Pratap Singh

Shankar Sharma

Sankara Sri Venkata Ramakumar

Brijesh Kumar

Ravinder Kumar Malhotra

Sanjiv Kumar Mazumdar

Santanam Rajagopal

Mohan Prabhu Kuvettu

Ram Mohan Thakur

Gadari Saidulu

Dheer Singh

Saravanan Subramani

Niranjan Raghunath Raje

Reshmi Manna

Venkatachalam Krishnan

Kamlesh Gupta

Sanjeev Singh

Pushkar Varshney

Veena Rani Bansal

Prosenjit Maji

Ashok Kumar Tiwari

Vutukuru Lakshmi Murthy

Brijesh Kumar Verma

Satayen Kumar Das

Bandaru Venkata Hari P Gupta

Ramakrishnan Ramanarayanan

Konduri Lakshminarayana

Vinod Ramchandra Upadhyay

Deepa Meghavathu

Wadharwa Ram Kalsi

Jai Prakash Singh

Ganga Sanker Mishra

Ashok Kumar Tewari

Suresh Kumarshah

The present invention relates to a process for etherification of mixed olefinic light naphtha boiling in the range of C5-90&#xb0; C. cut with simultaneous minimization of unreacted methanol concentration in the product. The etherification of mixed olefinic light naphtha produces the high octane blending component which can be blended directly in the gasoline pool without any recovery of the feed oxygenates like methanol, ethanol etc. which conventionally uses energy intensive separation processes.

Process for etherification of mixed olefinic light naphtha and simultaneous reduction of methanol in the product

Disclosed herein is an improved fluidized catalytic cracking process for converting normally liquid hydrocarbon feedstock with simultaneous reduction of sulfur content in the liquid products obtained therefrom which comprises carrying out the cracking process in the presence of carbon monoxide gas as a reducing agent. The process optionally includes a step of premixing the hydrocarbon feedstock with carbon monoxide gas causing major sulfur reduction before effecting the cracking. The premixing is done in a specified nozzle assembly linked to the FCC unit.

Process for reduction of sulfur in FCC liquid products through the use of carbon monoxide as a reducing agent

The present invention relates to a process for the conversion of hydrocarbon streams with 95% true boiling point less than 400&#xb0; C. to very high yield of liquefied petroleum gas in the range of 45-65 wt % of feed and high octane gasoline, the said process comprises catalytic cracking of the hydrocarbons using a solid fluidizable catalyst comprising a medium pore crystalline alumino-silicates with or without Y-zeolite, non crystalline acidic materials or combinations thereof in a fluidized dense bed reactor operating at a temperature range of 400 to 550&#xb0; C., pressure range of 2 to 20 kg/cm(g) and weight hourly space velocity in range of 0.1 to 20 hour, wherein the said dense bed reactor is in flow communication to a catalyst stripper and a regenerator for continuous regeneration of the coked catalyst in presence of air and or oxygen containing gases, the catalyst being continuously circulated between the reactor-regenerator system.

Process for conversion of hydrocarbons to saturated LPG and high octane gasoline

According to this invention, there is provided a process and apparatus for catalytic cracking of various petroleum based heavy feed stocks in the presence of solid zeolite catalyst and high pore size acidic components for selective bottom cracking and mixtures thereof, in multiple riser type continuously circulating fluidized bed reactors operated at different severities to produce high yield of middle distillates, in the range of 50&#x2013;65 wt % of fresh feed.

Multi stage selective catalytic cracking process and a system for producing high yield of middle distillate products from heavy hydrocarbon feedstocks

A process for converting undesirable olefinic hydrocarbon streams to hydrogen and petrochemical feedstock e.g. light olefins in C.sub.2 -C.sub.4 range and aromatics especially toluene and xylenes, which comprises simultaneous cracking and reforming at olefin rich hydrocarbons using a catalyst consisting of dehydrogenating metal components, shape selective zeolite components and large pore acidic components in different proportions in a circulating fluidized bed reactor-regenerator system having reactor temperature within 450-750.degree. C. and WHSV of 0.1-60 hour.sup.-1.

Upgradation of undesirable olefinic liquid hydrocarbon streams

A process for selective catalytic cracking of a petroleum-based feedstock to produce a product having a high yield of liquified petroleum gas (LPG) and light olefins having 3 to 4 carbons includes providing a fluidized bed reactor which is a high velocity riser, continuously circulating fluidized bed reactor; providing a solid acidic catalyst comprised of: from 1 to 6% by wt. of ultra stable Y-zeolite; from 8-25% by wt. of Pentasil zeolite which is shape selective; from 0-8% by wt. of an active material which is bottom selective; from 0-1% by wt. of rare earth constituents; and from 91 to 60% by wt. of nonacidic constituents and binder; charging the fluidized bed reactor with the solid acidic catalyst and the petroleum-based feedstock; and cracking the petroleum-based feedstock in the presence of the solid acidic catalyst in the fluidized bed reactor. The reactor is operated at a Weight Hourly Space Velocity (WHSV) ranging from 40 to 120 hr.sup.-1, a ratio of solid acidic catalyst to petroleum-based feedstock ranging from 15 to 25, a temperature at the top of the high velocity riser ranging from 530.degree. C. to 600.degree. C., recycled riser products ranging from 0 to 40%, a pressure in the fluidized bed reactor ranging from 1.0 to 4.0 kg/cm.sup.2 g, and an amount of steam for dilution and quenching of hydrocarbons ranging from 3 to 50 wt. % of the petroleum-based feedstock. The Pentasil zeolite has a pore size ranging from 5 to 6 .ANG. so that the catalyst is highly selective for LPG and C.sub.4 light olefins with minimum dry gas and coke make, and so that the vanadium tolerance of the catalyst is increased and ranges up to 21,000 PPM. The process produces a LPG yield ranging up to 40 to 65 wt. % of the fresh petroleum-based feedstock, a selectivity for the light olefins of at least 40 wt. %, and a selectivity for the LPG of at least 45 wt.

Process for catalytic cracking of petroleum based feed stocks

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Faridabad, India

Latoor Lal Saroya