Effect of hydrothermal liquefaction aqueous phase recycling on bio-crude yields and composition
| Autor: | Maika Klemmer, Marianne Glasius, Bo B. Iversen, Patrick Biller, René B. Madsen, Jacob Becker |
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| Rok vydání: | 2016 |
| Předmět: |
Environmental Engineering
020209 energy Water phase recycle Bioengineering 02 engineering and technology 010501 environmental sciences 01 natural sciences Gas Chromatography-Mass Spectrometry Catalysis Distillers grains 0202 electrical engineering electronic engineering information engineering Recycling Organic Chemicals Waste Management and Disposal 0105 earth and related environmental sciences Bio-crude Chromatography Aqueous solution Renewable Energy Sustainability and the Environment Chemistry Continuous reactor Aqueous two-phase system Water General Medicine Pulp and paper industry Hydrothermal liquefaction Volume (thermodynamics) Biofuel Biofuels Aqueous phase |
| Zdroj: | Biller, P, Madsen, R B, Klemmer, M, Becker, J, Iversen, B B & Glasius, M 2016, ' Effect of hydrothermal liquefaction aqueous phase recycling on bio-crude yields and composition ', Bioresource Technology, vol. 220, pp. 190-199 . https://doi.org/10.1016/j.biortech.2016.08.053 |
| ISSN: | 0960-8524 |
| Popis: | Hydrothermal liquefaction (HTL) is a promising thermo-chemical processing technology for the production of biofuels but produces large amounts of process water. Therefore recirculation of process water from HTL of dried distillers grains with solubles (DDGS) is investigated. Two sets of recirculation on a continuous reactor system using K2CO3 as catalyst were carried out. Following this, the process water was recirculated in batch experiments for a total of 10 rounds. To assess the effect of alkali catalyst, non-catalytic HTL process water recycling was performed with 9 recycle rounds. Both sets of experiments showed a large increase in bio-crude yields from approximately 35 to 55 wt%. The water phase and bio-crude samples from all experiments were analysed via quantitative gas chromatography–mass spectrometry (GC–MS) to investigate their composition and build-up of organic compounds. Overall the results show an increase in HTL conversion efficiency and a lower volume, more concentrated aqueous by-product following recycling. |
| Databáze: | OpenAIRE |
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