Production of diesel fuel from vegetable oil Gaurav Nahar

Production Process Transesterification Esterification Thermal Cracking (Supercetane) Other Process Biocatalyst, Supercritical Methanol

Transesterification

Esterification

Demerits of tranesterification,esterification Cold flow properties Cetane Number (45-67) Storage By-products utilisation Feedstock properties Processing time

Thermal Cracking (Supercetane) Heating of triglycerides and fat-( o C) in presence of hydrogen Catalysts (Acidic) ZSM-5,H-Y Activated alumina. Ce-ZrO 2

Research Summary Sai et al,1996-Potassium impregnated HSZM-5- Canola oil Twaiq et al,1999 -HZSM-5-, Zeolite β, HZSM-- Ultra stable Y Mesoporus HZSM--Ultra stable Y- Palm oil Dandik et al,1998-HZSM-5-Used cooking oil- fractionating pyrolysis reactor Adebanjo et,2005 –Lard-Pyrolysis on quartz

Advantage of Supercetane fuel High Cetane number(100) Feed stock Stable storage Blending Low Sulphur content ( 10 ppm) NO x particulate matter emissions By-products-Refinery feedstock

Work Plan 1.Cracking of triglycerides on inert material like quartz in a fixbed reactor 2.Preparation and performance evaluation of catalyst on production of the production of diesel like fuel ZSM-5,Nickel-Mo supported on alumina,Ce-ZrO 2 3.Catalyst lifetime study and deactivation causes 4. Method of regeneration of the deactivated catalyst.

Work Plan Regeneration-air Regeneration-addition steam Catalyst doping Other no edible oil Jatropha is also to be studied