Title:
Design Considerations, Modeling and Assessment for the Thermochemical Production of Diesel Fuel from Miscanthus-Egyptian Coal Blend
Author(s):
Wafiq, A., Hanafy, M.
Document(s):
Paper
Poster
Abstract:
Egypt is facing acute diesel oil shortage with some national figures estimating the current imports to be half of the consumption. The combined Coal and Biomass to Liquids (CBtL) route is promising production alternative as it is based on two commercially proven sections; Coal/Biomass blend gasification and Fischer-Tropsch. This paper proposes a novel strategic combination between “Maghara” Egyptian Coal and Miscanthus energy crop. To assess the technical performance of this blend, three different routes were studied; BtL using Miscanthus, CtL using coal, and CBtL using 70-30 blend. Aspen plusTM was used to model these routes, and the pinch technology analysis was used to conduct energy integration. It was found that the three routes don’t need external heating agents while huge amount of cooling water is required. The CBtL route was found to be competitive to CtL in the fuel yields. CBtL diesel yield amounts to 162 kg/t feed compared to 167 for the CtL, and the naphtha yield was found to be about 70 kg/t feed for both. In addition to the comparable fuel yields factor, it can be concluded that CBtL route is favored to the CtL route due to less cooling water consumption (6.6 vs. 7.1 m3/t feed), higher thermal efficiency (48% vs. 44% on lower heating value basis including export power) and lower GHG (0.96 vs. 1.5 t CO2/ t feed).
Keywords:
coal, gasification, miscanthus, modelling, diesel, Fischer-Tropsch
Topic:
Biomass Conversion Technologies for Intermediates, Liquid and Gaseous Fuels, Chemicals and Materials
Subtopic:
Synthetic biofuels
Event:
22nd European Biomass Conference and Exhibition
Session:
3CV.2.52
Pages:
1208 - 1219
ISBN:
978-88-89407-52-3
Paper DOI:
10.5071/22ndEUBCE2014-3CV.2.52
Price:
FREE
