Comprehensive feasibility assessment of a poly-generation process integrating fast pyrolysis of S. japonica and the Rankine cycle

Brigljević, Boris; Liu, Jay

doi:10.1016/j.apenergy.2019.113704

Cited by 25 publications

(8 citation statements)

References 58 publications

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“…Many studies on the energy efficiency (EE), exergy analysis (EA), and techno-economic analysis (TEA) of a biomass power generation process have also been conducted. The levelized cost of energy (LCOE) was calculated and reported. − Combined heat and power generation (CHP), combined cooling, heat, and power generation (CCHP), or trigeneration systems that produce electricity and heat, have been widely developed to increase the overall energy efficiency. It was reported that the overall energy efficiency including electricity and heat is in the range of 43%–97% depending on the plant size and conditions.…”

Section: Introductionsupporting

confidence: 89%

Valorization of Biomass Power Generation System: Noble Use of Combustion and Integration with Energy Storage

Fushimi

2021

Energy Fuels

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For the development of sustainable energy and a great reduction of CO2 emission into the atmosphere, renewable energy has been rapidly installed and used in the last two decades. Many biomass power plants have been built and operated because the combustion of biomass is considered to be renewable and carbon neutral. In this review, the following topics are summarized: (1) economic values of bioproducts, (2) many restrictions of biomass power generation systems such as (i) very low energy efficiency from solar power to electricity, (ii) limiting amount of resource, and (iii) requirement of fuel cost for operation, and (3) characteristics of combustion technologies including drawbacks and the following strong points: (i) high power, (ii) high-temperature heat generation, and (iii) utilization for hygiene or sanitation purposes. The reduction of simple combustion and the noble use of combustion technology by effectively utilizing these strongpoints are required to greatly reduce CO2 emission even if renewable biomass is used. Next-generation biomass power generation systems integrated with variable renewable energy and energy storage system for non-steady-state operation are proposed as a promising method to balance the intermittent electricity supply by variable renewable energy and electricity demands.

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Section: Introductionsupporting

confidence: 89%

Valorization of Biomass Power Generation System: Noble Use of Combustion and Integration with Energy Storage

Fushimi

2021

Energy Fuels

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“…A total of seven parameters were subjected to one-point sensitivity analysis, i.e., by changing each parameter between the expected minimum and maximum value while fixing the other parameters to their base value. The minimum and maximum values were chosen based on the market fluctuation. ,,, The tornado chart in Figure summarizes the sensitivity analysis for the key economic and process parameters. The results show that FCI and natural gas price were the most sensitive parameters, followed by the discount rate and the macroalgae (seaweed) price.…”

Section: Resultsmentioning

confidence: 99%

“…The minimum and maximum values were chosen based on the market fluctuation. 11,29,33,35 The tornado chart in Figure 10 summarizes the sensitivity analysis for the key economic and process parameters. The results show that FCI and natural gas price were the most sensitive parameters, followed by the discount rate and the macroalgae (seaweed) price.…”

Section: ■ Process Designmentioning

confidence: 99%

“…On the other hand, the commercial potential of an experimental study can only be highlighted when showcased with supporting economic studies evaluating the process on an industrial scale. There are apparent gaps in studies involving the assessment of large-scale biofuel production via HTL of macroalgae as a feedstock; feasibility studies for the industrial-scale design of HTL using microalgae − are abundant, but for macroalgae , are still scarce.…”

Section: Introductionmentioning

confidence: 99%

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Comprehensive Feasibility Assessment of Combined Heat, Hydrogen, and Power Production via Hydrothermal Liquefaction of Saccharina japonica

Niaz

Brigljević

Park

et al. 2020

ACS Sustainable Chem. Eng.

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An increase in population and a decrease in natural resources have shifted the research focus toward renewable energy alternatives such as biofuel produced from algal biomass. The inherently high moisture content of macroalgae makes hydrothermal liquefaction (HTL) a viable approach for using macroalgae to generate renewable energy. This study focuses on experimental and economic feasibility studies regarding HTL of Saccharina japonica as a feedstock for combined heat, hydrogen, and power (CHHP) production. An experimental study was performed using various operating parameters, viz., temperature, reaction time, and macroalgae to water ratio. The optimal experimental conditions resulted in a bio-oil yield of 20.26 wt % and the highest liquefaction conversion of 91.0 wt %. Based on the experimental results, an industrial-scale CHHP process via HTL of S. japonica was developed and the economic viability of this process was evaluated. We assessed the economics of three different designs with different process configurations for 480 000 tons/year of dry macroalgae. The optimal CHHP process provided 17.7 MW of net power, net LP steam production of 60 000 kg/h, and a total hydrogen production of 5104 kg/h with a minimum hydrogen selling price (MHSP) of $3.00 kg −1 . The proposed CHHP process based on HTL of S. japonica could be a promising alternative for energy production.

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“…The process simulation at varying operating conditions for the pathways in the technology alternatives is performed on Aspen Plus V11.0. The capital cost for SMR plant equipment and the additional green hydrogen equipment are calculated using Aspen Capital Cost Estimator V11.0 and references to data from other literature [65][66][67][68][69][70]. The multi-objective non-convex MINLP model consists of 34 discrete variables, 2430 continuous variables, and 2159 constraints.…”

mentioning

confidence: 99%

Targeting climate‐neutral hydrogen production: Integrating brown and blue pathways with green hydrogen infrastructure via a novel superstructure and simulation‐based life cycle optimization

Lal

You

2022

AIChE Journal

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This article addresses the sustainable design of hydrogen (H2) production systems that integrate brown and blue pathways with green hydrogen infrastructure. We develop a systematic framework to simultaneously optimize the process superstructure and operating conditions of steam methane reforming (SMR)‐based hydrogen production systems. A comprehensive superstructure that integrates SMR with multiple carbon dioxide capture technologies, electrolyzers, fuel cells, and working fluids in the organic rankine cycle is proposed under varying operating conditions. A life cycle optimization model is then developed by integrating superstructure optimization, life cycle assessment approach, techno‐economic assessment, and process optimization using extensive process simulation models and formulated as a mixed‐integer nonlinear program. We find that the optimal unit‐levelized cost of hydrogen ranges from $1.49 to $3.18 per kg H2. Moreover, the most environmentally friendly process attains net‐zero life cycle greenhouse gas emissions compared to 10.55 kg CO2‐eq per kg H2 for the most economically competitive process design.

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Comprehensive feasibility assessment of a poly-generation process integrating fast pyrolysis of S. japonica and the Rankine cycle

Cited by 25 publications

References 58 publications

Valorization of Biomass Power Generation System: Noble Use of Combustion and Integration with Energy Storage

Valorization of Biomass Power Generation System: Noble Use of Combustion and Integration with Energy Storage

Comprehensive Feasibility Assessment of Combined Heat, Hydrogen, and Power Production via Hydrothermal Liquefaction of Saccharina japonica

Targeting climate‐neutral hydrogen production: Integrating brown and blue pathways with green hydrogen infrastructure via a novel superstructure and simulation‐based life cycle optimization

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