Indian Oil Corporation Limited

Som Prakash Srivastava

Suresh Kumar Puri

Akhilesh Kumar Bhatnagar

Anurag Ateet Gupta

Biswajit Basu

Niranjan Raghunath Raje

Arvind Pratap Singh

V K Sharma

Rameshwar Prasad

M Rajesh

Ved Singh

A K Misra

Arunagiri Samy

M Vanamamalai

A process for the preparation of Mannich condensation products from hydrogenated and distilled Cashew Nut Shell Liquid, amines and aldehydes which provides improved detergency in the gasoline. Optionally, a polymeric dispersant, a non-volatile hydrocarbon carrier fluid and a solvent may be included for protecting and removing buildup of deposits on carburetor surfaces and intake valve system of a gasoline powered internal combustion engine

Process of preparation of novel mannich bases from hydrogenated and distilled cashew nut shell liquid (CNSL) for use as additive in liquid hydrocarbon fuels

A process for preparing benzene containing less than 1 ppm (wt) dioxane from an aromatic stream containing benzene which is contaminated with dioxane, the process including providing an aromatic stream containing benzene which is contaminated with dioxane; subjecting the aromatic stream to liquid phase adsorption by contacting an adsorbent contained in at least one column, which adsorbent comprises at least one substance selected from the group consisting of molecular sieves and clay; and recovering benzene containing less than 1 ppm (wt) dioxane. Preferably, the liquid phase adsorption is carried out at a pressure ranging from atmospheric pressure to 20 kg/cm.sup.2 and at a temperature ranging from ambient temperature to 50.degree. C. Preferably, the molecular sieves have a pore size of 10 .ANG.. The process may further include regenerating the adsorbent by passing a flow of nitrogen gas through the adsorbent at a temperature ranging from 200 to 300.degree. C. Alternatively, the process may further include regenerating the adsorbent by heating the adsorbent at a temperature ranging from 200 to 300.degree. C. for a period of time which is effective to regenerate the adsorbent.

Process for the preparation of aromatic solvent from a dioxane

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Haryana, India

Som Prakash Srivastava