Process design for the production of butylene, gasoline/jet fuel-range hydrocarbons, and aromatics from bio-butanol

Kodumuru, Nikhilesh and Maity, Sunil Kumar (2018) Process design for the production of butylene, gasoline/jet fuel-range hydrocarbons, and aromatics from bio-butanol. Masters thesis, Indian Institute of Technology Hyderabad.

Text
Thesis_Mtech_CH_4223.pdf - Submitted Version
Restricted to Repository staff only until 2020.
Download (3MB) | Request a copy

Abstract

The process design is the sequencing of various units for the desired physical or chemical transformations of materials. They generally include process flow diagrams including mass and energy balance, flow rates, compositions, pressures, temperatures of th e stream etc. It is a primary step for the techno - economic analysis. The bio - butanol is well accepted as a bio - fuel for direct application in gasoline engine. It has also huge derivative potentials such as butylenes, aromatics, and gasoline/jet fuel range transportation fuels. The butylenes and aromatics are the important petrochemical building block chemicals. They find the applications in polymer, paints, and various organic chemical industries. The bio - butanol is derived from sugarcane and corn (or ligno cellulosic biomass). The process design for the production of bio - butanol from sugar cane and corn using Aspen plus was developed by our research group. The present work provides the conceptual process design for the production of following products from b io - butanol using Aspen plus: (i) butylenes, (ii) gasoline/jet fuel range hydrocarbons, and (iii) aromatics (BTX). The butanol undergoes dehydration to produce butylenes. Two alternative routes were considered for the production of gasoline/jet fuel range h ydrocarbons from bio - butanol in the present work. Following the first route, the bio - butanol undergoes dehydration to butylenes followed by oligomerization of butylenes to produce gasoline/jet fuel range hydrocarbons. In the second route, the bio - butanol u ndergoes simultaneous dehydration and oligomerization in the same reactor to produce gasoline range hydrocarbons. The bio - butanol undergoes simultaneous dehydration, oligomerization, cyclization, and aromatization to produce BTX - rich aromatics. The process was designed based on the reaction conditions available in the literature. The process was designed for the plant capacity of 10000 tons per annum (TPA) of bio - butanol. The main challenge of this work is the separation of undesired products from the desir ed products to increase their purity.

[error in script]

IITH Creators: