Conference article

Assessment of the Energetic Efficiency of A Continuously Operating Plant for Hydrothermal Carbonisation of Biomass

Jan Stemann
Technische Universität Berlin, Institute of Energy Engineering, Germany

Felix Ziegler
Technische Universität Berlin, Institute of Energy Engineering, Germany

Emmanuel Ndzibah
Industrial Management Unit,University of Vaasa,Finland

Jan Rohovec
Institute of Geology AS CR v.v.i, Prague, Czech Republic

Jana Touskova
Department of Macromolecular Physics, Charles University in Prague, Prague, Czech Republic

Jiri Tousek
Department of Macromolecular Physics, Charles University in Prague, Prague, Czech Republic

Frantisek Schauer
Polymer Centre, Tomas Bata University, Zlin, Czech Republic

Ivo Kuritka
Polymer Centre, Tomas Bata University, Zlin, Czech Republic

Enaiyat Ghani Ovy
Department of Mechanical & Chemical Engineering, Islamic University of Technology, Bangladesh

S. M. Ferdous
Department of Electrical & Electronic Engineering, Islamic University of Technology, Bangladesh

Walid Bin Khaled
Department of Mechanical & Chemical Engineering, Islamic University of Technology, Bangladesh

Benozir Ahmed
Department of Electrical & Electronic Engineering, Islamic University of Technology, Bangladesh

Sayedus Salehin
Department of Mechanical & Chemical Engineering, Islamic University of Technology, Bangladesh

Georgios Stamatiou
University of Nottingham, Nottingham, UK

Kailash Srivastava
ABB Corporate Research, Västerås, Sweden

Muhamad Reza
ABB Corporate Research, Västerås, Sweden

Pericle Zanchetta
University of Nottingham, Nottingham, UK

Tomislav Kurevija
Faculty of Mining, Geology and Petroleum Engineering, University of Zagreb, Zagreb, Croatia

Domagoj Vulin
Faculty of Mining, Geology and Petroleum Engineering, University of Zagreb, Zagreb, Croatia

Vedrana Krapec
Faculty of Mining, Geology and Petroleum Engineering, University of Zagreb, Zagreb, Croatia

Carl-Erik Grip
LTU (Luleå University of Technology) Division Energy Technology, Luleå, Sweden

Erik Elfgren
LTU (Luleå University of Technology) Division Energy Technology, Luleå, Sweden

Mats Söderström
LIU (Linköping University), Division Energy Systems, Linköping, Sweden

Patrik Thollander
LIU (Linköping University), Division Energy Systems, Linköping, Sweden

Thore Bernsson
Chalmers University of Technology, Division Heat and Power Technology, Gothenburg, Sweden

Anders Åsblad
CIT Industriell Energi, Gothenburg, Sweden

Jianxin Hu
College of Design, School of Architecture, North Carolina State University, Raleigh, USA

Jiangtao Du
School of Architecture, University of Sheffield, Sheffield, UK

Wayne Place
College of Design, School of Architecture, North Carolina State University, Raleigh, USA

Chuan Wang
Swerea MEFOS, Luleå Sweden

V. Prabu
Indian Institute of Technology Madras, Chennai, India

S. Jayanti
Indian Institute of Technology Madras, Chennai, India

Jack Giles
University of Southampton, Southampton, UK \ IT Power Ltd., Bristol, UK

Luke E. Myers
University of Southampton, Southampton, UK

AbuBakr S. Bahaj
University of Southampton, Southampton, UK

Bob Schelmerdine
IT Power Ltd., Bristol, UK

Chi-Feng Chen
Department of Natural Resources, Chinese Culture University, Taipei, Taiwan

L. Cabareda
Pararrayos Ionizantes, C.A., Maturín, Venezuela

Mohammad Rezæi
Mazandaran Gas Company, Sari, Iran

Mahmood Farzaneh-Gord
The Faculty of Mechanical Engineering, Shahrood University of Technology, Shahrood, Iran

Ahmad Arabkoohsar
The Faculty of Mechanical Engineering, Shahrood University of Technology, Shahrood, Iran

Mahdi Deymi Dasht-bayaz
The Faculty of Mechanical Engineering, Shahrood University of Technology, Shahrood, Iran

Download articlehttp://dx.doi.org/10.3384/ecp11057125

Published in: World Renewable Energy Congress - Sweden; 8-13 May; 2011; Linköping; Sweden

Linköping Electronic Conference Proceedings 57:17, s. 125-132

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Published: 2011-11-03

ISBN: 978-91-7393-070-3

ISSN: 1650-3686 (print), 1650-3740 (online)

Abstract

To date wet lignocellulosic biomass cannot be used efficiently for energy production. By hydrothermal carbonisation (HTC) wet biomass may be efficiently transformed to a solid; lignite-like fuel with good dewatering and grinding properties and a high calorific value. Energetic yields of the HTC reaction can be derived from lab scale experiments. However; for the assessment of energetic efficiencies of a HTC plant the amount of external energy consumption needs to be calculated. A model of a semi-continuously HTC plant is presented with a heat recovery system which is based on recycling of hot compressed water. Results of simulations with the program Engineering Equations Solver show that energy consumption can be significantly reduced by internal heat recovery. Efficiencies of a HTC plant model are presented based on experiments with beech wood chips as a model biomass. A sensitivity analysis of the water content of the biomass and the heat of reaction is presented.

Keywords

Hydrothermal carbonisation; biomass; heat recovery; efficiency

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