Council of Scientific and Industrial Research

Reliance Industries Limited

Prasenjit Ghosh

Madhukar Onkarnath Garg

Shrikant Madhusudan Nanoti

Sunil Kumar

Bhagat Ram Nautiyal

Pooja Yadav

Nisha

Jagdish Kumar

Nagarathinam Shenbaga Murthy

Kumar Jagdish

Ram Bhagat Nautiyal

Kumar Sunil

Manish Tiwari

Meka Raja Rao

Nagarathinam Shengaga Murthy

Raja Gopala Rao Meka

An integrated process for simultaneous removal and value addition to sulfur and aromatics compounds of gas oil is provided. Process includes the segregation of refractive sulfur and aromatics compounds of gas oil in heavy fraction of gas oil using distillation processing of heavy fraction of gas oil in continuous solvent extraction zone, processing of lighter fraction of gas oil and raffinate of heavy fraction of gas oil in hydrotreating reaction zone operating under mild conditions of temperature and pressure for producing the gas oil with reduced sulfur and aromatic compounds and contact of extract phase generated during continuous extraction with water in mixer settler for generating the pseudo raffinate which can be used as suitable feed to hydrocracker to generate sulfur lean gas oil.

Integrated process for simultaneous removal and value addition to the sulfur and aromatics compounds of gas oil

Disclosed is a process for simultaneous production of benzene lean gasoline and recovery of high purity aromatics from narrow boiling light cracked gasoline fractions. The present invention provides a vacuum based two stage extractive distillation process, with pure NMP, for production of benzene lean gasoline (benzene content less than 0.4 Weight %) by recovery of high purity aromatics (purity more than 99 Weight %) from cracked gasoline fractions (boiling in the range of 40-90&#xb0; C.) comprising benzene in the range of 10-30 weight % and close-boiling non-aromatic hydrocarbons like paraffins, iso-paraffins, olefins, di-olefins (including conjugated di-olefins), and naphthenes in the range of 70-90 weight % along with impurities containing but not limited to oxygenates, metals, chlorides, sulphur compounds, nitrogen compounds and organic peroxides. The present invention provides an improved extractive distillation process for simultaneous production of benzene lean gasoline and benzene rich product from cracked gasoline fraction, with higher recovery of better quality products along with lower utility requirements and investment costs.

Process for simultaneous production of benzene lean gasoline and high purity benzene from cracked gasoline fraction

Disclosed is a process for production of benzene lean gasoline by recovery of high purity benzene from a narrow boiling benzene concentrated unprocessed cracked gasoline fraction. The process involves subjecting the feed material to an extractive distillation (ED) operation using an aromatic selective solvent in combination with a co-solvent.

Process for production of benzene lean gasoline by recovery of high purity benzene from unprocessed cracked gasoline fraction containing organic peroxides

Growing community of inventors

Dehradun, India

Prasenjit Ghosh