Resource recovery from organic solid waste using hydrothermal processing: Opportunities and challenges

Munir, Muhammad Tajammal; Mansouri, Seyed Soheil; Udugama, Isuru A.; Baroutian, Saeid; Gernaey, Krist V.; Young, Brent R.

doi:10.1016/j.rser.2018.07.039

Cited by 120 publications

(51 citation statements)

References 93 publications

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“…The development of a validated plant simulation can provide important insight on the process dynamics [32]. Through a process simulator, operating parameters can be varied so to optimize the process considering both energy and economic aspects.…”

Section: Large Scale Modelingmentioning

confidence: 99%

“…Commercial suites (like Aspen Plus ® or UniSim Design ® ) and software environments (like Matlab) allow the development of such type of models. The current process simulators solve the process equations using proper databases and solving methods, which require accurate equilibrium and kinetics input data [32]. However, few data are currently available in literature regarding HTC thermodynamic and kinetics, limiting the reliability of the implemented models.…”

Section: Large Scale Modelingmentioning

confidence: 99%

“…This is essential to increase the HTC competitiveness and attractiveness with respect to traditional techniques [31]. Commercial parties need to easily explore the possibility of HTC, without investing significant resources [32]. Therefore, the scarcity of reliable models in the current state of the art for HTC makes modeling a challenge that should be faced in our immediate future for the diffusion of the HTC technology [33].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Hydrothermal Carbonization of Organic Waste and Biomass: A Review on Process, Reactor, and Plant Modeling

Ischia

Fiori

2020

Waste Biomass Valor

107

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Hydrothermal carbonization (HTC) is an emerging path to give a new life to organic waste and residual biomass. Fulfilling the principles of the circular economy, through HTC “unpleasant” organics can be transformed into useful materials and possibly energy carriers. The potential applications of HTC are tremendous and the recent literature is full of investigations. In this context, models capable to predict, simulate and optimize the HTC process, reactors, and plants are engineering tools that can significantly shift HTC research towards innovation by boosting the development of novel enterprises based on HTC technology. This review paper addresses such key-issue: where do we stand regarding the development of these tools? The literature presents many and simplified models to describe the reaction kinetics, some dealing with the process simulation, while few focused on the heart of an HTC system, the reactor. Statistical investigations and some life cycle assessment analyses also appear in the current state of the art. This work examines and analyzes these predicting tools, highlighting their potentialities and limits. Overall, the current models suffer from many aspects, from the lack of data to the intrinsic complexity of HTC reactions and HTC systems. Therefore, the emphasis is given to what is still necessary to make the HTC process duly simulated and therefore implementable on an industrial scale with sufficient predictive margins. Graphic Abstract

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Section: Large Scale Modelingmentioning

confidence: 99%

Section: Large Scale Modelingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Hydrothermal Carbonization of Organic Waste and Biomass: A Review on Process, Reactor, and Plant Modeling

Ischia

Fiori

2020

Waste Biomass Valor

107

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“…HTC is usually conducted at mild reaction temperatures (150-350 • C), autogenous pressure, and different reaction times ranging from some minutes to several hours depending on the use of the final product, with higher times required for energy purposes [18,19]. Among other treatments including biological and thermochemical, hydrothermal processing of organic wastes seems to be the most promising technology [20]. Comparison of HTC and low temperature pyrolysis of residual biomass has been previously studied concluding that hydrochar shows higher thermal efficiency and lower pollutant emissions along with lower activation energies for combustion [21].…”

Section: Introductionmentioning

confidence: 99%

Hydrothermal Carbonization of Olive Tree Pruning as a Sustainable Way for Improving Biomass Energy Potential: Effect of Reaction Parameters on Fuel Properties

et al. 2020

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Hydrothermal carbonization (HTC) allows the conversion of organic waste into a solid product called hydrochar with improved fuel properties. Olive tree pruning biomass (OTP), a very abundant residue in Mediterranean countries, was treated by HTC to obtain a solid fuel similar to coal that could be used in co-combustion processes. Three different reaction temperatures (220, 250, and 280 °C) and reaction times (3, 6, and 9 h) were selected. The hydrochars obtained were extensively analyzed to study their behavior as fuel (i.e., ultimate, proximate, fiber and thermogravimetric analysis, Fourier-transform infrared spectroscopy (FTIR), activation energy, and combustion performance). The concentrations of cellulose, hemicellulose, and lignin in the samples depict a clear and consistent trend with the chemical reactions carried out in this treatment. Regarding O/C and H/C ratios and HHV, the hydrochars generated at more severe conditions are similar to lignite coal, reaching values of HHV up to 29.6 MJ kg−1. The higher stability of the solid is reflected by the increase of the activation energy (≈60 kJ mol−1), and ignition temperatures close to 400 °C. With this, HTC is a proper thermal treatment for the management of raw OTP biomass and its further conversion into a solid biofuel.

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“…In this work, pomelo peel was chemically modified with potassium hydroxide agent and then activated by a hydrothermal technique. Hydrothermal technique is widely used to dispose and transform organic solid waste into valuable resources [31]. Compared to conventional activation method, low temperature (200°C) of hydrothermal processing not only decreases production cycle and cost, but also does not produce waste gases such as CO 2 , NO, SO 2 .…”

Section: Introductionmentioning

confidence: 99%

Biosorbents prepared from pomelo peel by hydrothermal technique and its adsorption properties for congo red

Zheng

Sun

et al. 2020

Mater. Res. Express

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A new kind of biosorbent was prepared from pomelo peel by using potassium hydroxide as activating agent and hydrothermal treatment method. The characteristics of materials were analyzed by SEM, BET and FTIR. Increasing the adsorbent dosage (from 2.5 to 17.5 g l −1 ) and contents of congo red in solution (from 20 to 50 mg l −1 ) cause the increment of removal rate of congo red. On the other side, the removal rate is decrement with rising of temperature and pH. The maximum adsorption quantity of biosorbent was 144.93 mg g −1 at 303 K, which calculated by Langmuir model. The pseudo-firstorder kinetic model, pseudo-second-order kinetic model and intra-particle diffusion model were used to explain adsorption process. The value of Gibbs free energy (ΔG) is −7.63 (kJ/mol) at 303 K and the enthalpy change (ΔH) is −31.43 (kJ/mol), meaning that adsorption behavior for congo red is spontaneous.

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Resource recovery from organic solid waste using hydrothermal processing: Opportunities and challenges

Cited by 120 publications

References 93 publications

Hydrothermal Carbonization of Organic Waste and Biomass: A Review on Process, Reactor, and Plant Modeling

Hydrothermal Carbonization of Organic Waste and Biomass: A Review on Process, Reactor, and Plant Modeling

Hydrothermal Carbonization of Olive Tree Pruning as a Sustainable Way for Improving Biomass Energy Potential: Effect of Reaction Parameters on Fuel Properties

Biosorbents prepared from pomelo peel by hydrothermal technique and its adsorption properties for congo red

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