Council of Scientific and Industrial Research

Rajiv Panwar

Sandeep Kumar Saxena

Anjan Ray

Nagabhatla Viswanadham

Viswanadham Nagabhatla

Jagdish Kumar

Devaki Nandan

Sreenivasulu Peta

Hydrocarbon composition plays vital role in fuel quality. For gasoline/motor spirit applications the hydrocarbon should have more octane-possessing molecules from the groups of aromatics, naphthenics and isoparaffins, while n-paraffins are not preferred due to their poor octane. Among the high-octane groups, again aromatics occupy the top but not more than 35 vol % aromatics can be mixed in gasoline for engine applications to avoid harmful emission, But there is no single process that addresses so far the issue of co-producing all the desired hydrocarbon components in a single process. Thus, it is interesting to have a single once-through process working on single catalyst system to produce mixture of all three high-octane molecules namely, aromatics, naphthenics and isoparaffins directly from low-value, low-octane n-paraffin feed. Herein, we report a novel single-step catalytic process for the simultaneous production of aromatics, naphthenics and isoparaffins for gasoline and petrochemical applications.

Single step process for the simultaneous production of aromatics, naphthenics and isoparaffins using transition metal functionalized zeolite based catalyst

The present invention discloses a single step catalytic process for the conversion of n-paraffins and naphtha to diesel range hydrocarbons. A bi-metallic Pt&#x2014;Sn/ZSM-5 catalyst has been developed for the direct conversion of n-heptane as well as naphtha into diesel range hydrocarbons in a single step process.

Single step catalytic process for the conversion of n-paraffins and naphtha to diesel range hydrocarbons

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Uttarakhand, India

Rajiv Panwar