Skoči na glavni sadržaj

Journal of Sustainable Development of Energy, Water and Environment Systems, Vol. 6 No. 1, 2018.

Izvorni znanstveni članak

https://doi.org/10.13044/j.sdewes.d5.0177

Techno-economic Assessment of Integrated Hydrothermal Liquefaction and Combined Heat and Power Production from Lignocellulose Residues

Mohamed Magdeldin orcid id orcid.org/0000-0003-0157-0198 ; Department of Mechanical Engineering, Thermodynamics & Combustion Technology Laboratory, School of Engineering, Aalto University, Otakaari 4 (K1), 02150 Espoo, Aalto, Finland
Thomas Kohl ; Department of Mechanical Engineering, Thermodynamics & Combustion Technology Laboratory, School of Engineering, Aalto University, Otakaari 4 (K1), 02150 Espoo, Aalto, Finland
Mika Järvinen ; Department of Mechanical Engineering, Thermodynamics & Combustion Technology Laboratory, School of Engineering, Aalto University, Otakaari 4 (K1), 02150 Espoo, Aalto, Finland

Puni tekst: engleski pdf 1.174 Kb

str. 89-113

preuzimanja: 1.325

citiraj

Sažetak

Waste biomass as a mean for global carbon dioxide emissions mitigation remains under-utilized. This is mainly due to the low calorific value of virgin feedstock, characterized generally with high moisture content. Aqueous processing, namely hydrothermal liquefaction in subcritical water conditions, has been demonstrated experimentally to thermally densify solid lignocellulose into liquid fuels without the pre-requisite and energy consuming drying step. This study presents a techno-economic
evaluation of an integrated hydrothermal liquefaction system with downstream combined heat and power production from forest residues. The utilization of the liquefaction by-products and waste heat from the elevated processing conditions, coupled with the chemical upgrading of the feedstock enables the poly-generation of biocrude, electricity
and district heat. The plant thermal efficiency increases by 3.5 to 4.6% compared to the conventional direct combustion case. The economic assessment showed that the minimum selling price of biocrude, based on present co-products market prices, hinders commercialization and ranges between 138 EUR to 178 EUR per MWh. A sensitivity analysis and detailed discussion on the techno-economic assessment results are presented for the different process integration and market case scenarios.

Ključne riječi

Hydrothermal liquefaction; Biocrude; Combined heat and power; Techno-economic assessment

Hrčak ID:

194976

URI

https://hrcak.srce.hr/194976

Datum izdavanja:

31.3.2018.

Posjeta: 2.295 *