Integration of torrefaction in CHP plants – A case study

Exergoeconomic assessment of CHP-integrated biomass upgrading

“…They concluded that the system based on TWP has a lower environmental impact but requires more harvesting area. Starfelt et al [5] studied the integration of TWP production, with a CHP http://dx.doi.org/10.1016/j.apenergy.2015.06.047 0306-2619/Ó 2015 Elsevier Ltd. All rights reserved. plant and found it economically feasible to replace the DH system's coal demand by torrefaction char.…”

Integration of torrefaction and CHP plant: Operational and economic analysis

“…The integration of torrefaction within a CHP plant can potentially cover the energy requirements of the torrefaction process and simultaneously increase the power generation and annual operating hours of plant as well as generate the valuable product for sale. Starfelt et al [20] investigated the advantages of a combined system of torrefaction and CHP that covers the energy demand of the torrefaction reactor and keeps the heat and power generation at required levels. Possibilities of co-location of torrefaction facilities with coal-fired power plants and corn ethanol plants were evaluated in [21].…”

Process Modeling of a Biomass Torrefaction Plant

“…A literature survey indicates that a majority of published articles on this subject are experimental research with a particular focus on understanding the kinetic mechanism of torrefaction and fuel properties of the torrefied product. − The modeling studies on biomass torrefaction available in the literature allow prediction of the weight loss, energy yield, volatiles and solid yields, and composition of volatiles evolved during torrefaction. − A few studies have been reported with the aim of process modeling of biomass torrefaction at the system level, in that a torrefaction unit or process is simulated using an in house or commercial software. ,− Preliminary results on integrated torrefaction and a CHP plant have also been documented. , …”

“…2,24−26 Preliminary results on integrated torrefaction and a CHP plant have also been documented. 2,27 Joshi et al 24 studied a biomass torrefaction unit which uses pressurized superheated steam as the source of heat to the process through two heat exchangers. They used CycleTempo to simulate the torrefaction process by incorporating the externally programmed unit operation models of drying and torrefaction.…”