Enhancing the Fuel Properties of Spent Coffee Grounds through Hydrothermal Carbonization: Output Prediction and Post-Treatment Approaches
Created by W.Langdon from
gp-bibliography.bib Revision:1.7954
- @Article{dang:2024:Sustainability,
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author = "Chau Huyen Dang and Gianluigi Farru and
Claudia Glaser and Marcus G. Fischer and Judy A. Libra",
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title = "Enhancing the Fuel Properties of Spent Coffee Grounds
through Hydrothermal Carbonization: Output Prediction
and {Post-Treatment} Approaches",
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journal = "Sustainability",
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year = "2024",
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volume = "16",
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number = "1",
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pages = "Article No. 338",
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keywords = "genetic algorithms, genetic programming",
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ISSN = "2071-1050",
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URL = "https://www.mdpi.com/2071-1050/16/1/338",
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DOI = "doi:10.3390/su16010338",
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abstract = "The reuse potential for the large annual production of
spent coffee grounds (SCGs) is underexploited in most
world regions. Hydrochars from SCGs produced via
hydrothermal carbonization (HTC) have been recognised
as a promising solid fuel alternative. To increase
demand, optimisation of the HTC and two post-treatment
processes, washing and agglomeration, were studied to
improve hydrochar in terms of energetic properties,
minimizing unwanted substances, and better handling.
HTC experiments at three scales (1-18.75 L) and varying
process conditions (temperature T (160-250 ?C),
reaction time t (1-5 h), and solid content percentSo
(6-20percent) showed that the higher heating value
(HHV) can be improved by up to 46percent, and most
potential emissions of trace elements from combustion
reduced (up to 90percent). The HTC outputs (solid
yield--SY, HHV, energy yield--EY) were modelled and
compared to published genetic programming (GP) models.
Both model types predicted the three outputs with low
error (<15percent) and can be used for process
optimisation. The efficiency of water washing depended
on the HTC process temperature and type of aromatics
produced. The furanic compounds were removed
(69-100percent; 160 ?C), while only 34percent of the
phenolic compounds (240 ?C) were washed out.
Agglomeration of both wet SCG and its hydrochar is
feasible; however, the finer particles of washed
hydrochar (240 ?C) resulted in larger-sized spherical
pellets (85percent > 2000-4000 um) compared to SCGs
(only 4percent).",
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notes = "also known as \cite{su16010338}",
- }
Genetic Programming entries for
Huyen Chau Dang
Gianluigi Farru
Claudia Glaser
Marcus G Fischer
Judy A Libra
Citations