Integrating biomass gasification with a steam-injected micro gas turbine and an Organic Rankine Cycle unit for combined heat and power production

Moradi, Ramin; Marcantonio, Vera; Cioccolanti, Luca; Bocci, Enrico

doi:10.1016/j.enconman.2019.112464

Cited by 52 publications

(19 citation statements)

References 53 publications

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“…By introducing a new component in a process, changing the operating scheme, or by changing the operating conditions of certain components, some stream properties are modified, which affect all downstream components. Ultimately, the overall system performance is affected (Barelli et al, 2020;Moradi et al, 2020).…”

Section: Integrated System Modelingmentioning

confidence: 99%

“…Oxy-combustion flue gas heat potential is assessed by considering a combustion efficiency of 90% with respect to the LHV NG and assuming a fully developed combustion. The actual heat provided to the off-gas is calculated by assuming a precautionary heat transfer efficiency for an indirect heat exchanger of 70% (Moradi et al, 2020;Heat Exchanger World, 2021).…”

Section: Operating Parameters Rangementioning

confidence: 99%

“…As an alternative, the off-gas preheating is obtained in consideration of electrical heating: after calculating the heat duty required to increase the temperature of the off-gas mixturewhose thermodynamic properties are calculated at the average heat exchange temperature-from 32 to 650 • C, the electrical power is calculated by assuming a precautionary heat transfer efficiency of 70% (Moradi et al, 2020;Heat Exchanger World, 2021).…”

Section: Operating Parameters Rangementioning

confidence: 99%

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A System Integration Analysis of a Molten Carbonate Electrolysis Cell as an Off-Gas Recovery System in a Steam-Reforming Process of an Oil Refinery

et al. 2021

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Technologies capable of efficiently exploiting unavoidable CO2 streams, have to be deeply investigated and deployed during the transition phase to achieve long-term climate neutrality targets. Among the technologies, Molten Carbonate Cells (MCC) Operating in Electrolysis Mode (MCEC) represents a promising facility to valorize CO2-rich waste streams, which are typically available in industrial plants, by their conversion into a high-value H2/CO syngas. These gaseous products can be reintegrated in a plant or reused in different applications. This study analyzes the integration of a system of the MCEC unit under different operating conditions in terms of composition, current density, and the utilization of fuels in a steam-reforming process of an Italian oil refinery via a mixed experimental-simulative approach. The aim of the current study is to assess the improvement in the overall product yield and further impacts of the MCEC unit on the plant efficiency. The results have shown that it is possible to obtain an electrochemical Specific Energy Consumption for the production of H2 of 3.24 kWh/NmH23 using the MCEC, whereby the possible integration of a 1-MWe module with a reformer of the proposed plant not only increases the hydrogen yield but also decreases the amount of fuel needed to assist the reforming reaction and separates a CO2 stream after additional purification via an oxy-fuel combustor, consequently determining lower greenhouse gases emissions.

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Section: Integrated System Modelingmentioning

confidence: 99%

Section: Operating Parameters Rangementioning

confidence: 99%

Section: Operating Parameters Rangementioning

confidence: 99%

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A System Integration Analysis of a Molten Carbonate Electrolysis Cell as an Off-Gas Recovery System in a Steam-Reforming Process of an Oil Refinery

et al. 2021

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“…are very limited contributions to justifying and comparing different biomass to bioenergy conversion techniques from technical, environmental, and economic aspects. In the subject of biomass gasification, several studies carried out thermoeconomic assessment of gasification systems in integration with other energy generation technologies such as Fuel Cell (FC) [6,7], Stirling engines [8,9], and micro-turbines [10,11]. Often, optimizing the Levelised Cost of Energy (LCOE) and exergy efficiency, by performing sensitivity analyses on several thermodynamic parameters, was the main objective in these studies.…”

Section: Orc Gasification Cspmentioning

confidence: 99%

Techno‐economic analysis of direct combustion and gasification systems for off‐grid energy supply: A case for organic rankine cycle and dual fluidized‐bed

Bagherian

Mehranzamir

Ahmed

et al. 2021

IET Renewable Power Gen

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Biomass is one of the most versatile sustainable energy sources. This versatility allows utilization of different biomass feedstock using a verity of conversion techniques. Often, a biomass‐to‐bioenergy conversion method is selected depending on the application, end‐use product, and the type of feedstock. In many applications such as residential energy supply, it is possible to select amongst various technologies. Although, there exist several challenges such as cost‐effectiveness and sustainability that constrains bioenergy development. To this end, this research elaborates on the impacts of different conversion methods on techno‐economic performance of bioenergy systems for residential energy supply. In this context, Organic Rankine Cycle based on direct combustion, and Dual Fluidized‐Bed technology based on gasification were selected for that purpose. A techno‐economic comparative analysis illustrates that the primary product of the system and fuel cost are the two most important factors in feasibility assessment. The negative impact of feedstock price was more severe on the Organic Rankine Cycle. For wood chips prices below 55$/t, Organic Rankine Cycle could be the better option due to lower capital and maintenance costs. In contrast, Dual Fluidized‐Bed could better tolerate the variation of feedstock price; offering 8% lower cost of energy at 65$/t wood chips.

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“…For example, the percentage of sulfur in the refuse from gardens (green wastes) is 0.18%, in the pine sawdust is 0.57%, in the wood chips is 0.02%, in the wood residue is 0.2%, and in the coffee bean husks is 0.07% [6]. Therefore, the gas resulting from the gasification of these materials will contain different amounts of H 2 S. In order to be used in power producing equipment such as gas engines, micro gas turbines, or fuel cells, the syngas must be conditioned in order to meet the required operation conditions [7]. The main syngas contaminants with detrimental effects for such equipment are solid particles, tar, H 2 S, HCl, and alkali compounds such as NaOH and KOH [8].…”

Section: Introductionmentioning

confidence: 99%

Optimization of the Technological Parameters for Obtaining Zn-Ti Based Composites to Increase the Performance of H2S Removal from Syngas

et al. 2020

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The realization of some composite materials that allow the best removal of H2S from syngas was the main objective of this work. Thus, the optimization of the technological parameters for obtaining composites based on Zn-Ti was achieved. The paper studies the influence of calcination temperature on the characteristics of the binary ZnO-TiO2 system used to synthesize a composite material with suitable properties to be used subsequently for syngas treatment. The mineralogical and structural analyzes showed that starting with the calcination temperature of 700 °C the material synthetized is composed mainly of zinc orthotitanate which possess the corresponding characteristics to be finally used in the treatment of the syngas for its desulfurization. At this calcination temperature the material has a compact structure most likely due to sintering of the formed titanates. These composites have a texture that places them rather in the category of non-porous materials, the pore volume and their surface area obviously decreasing as the calcination temperature increases. A maximum sulfur removal degree of about 97% was obtained by using a composite synthetized at a temperature of 700 °C (ZT-700).

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Integrating biomass gasification with a steam-injected micro gas turbine and an Organic Rankine Cycle unit for combined heat and power production

Cited by 52 publications

References 53 publications

A System Integration Analysis of a Molten Carbonate Electrolysis Cell as an Off-Gas Recovery System in a Steam-Reforming Process of an Oil Refinery

A System Integration Analysis of a Molten Carbonate Electrolysis Cell as an Off-Gas Recovery System in a Steam-Reforming Process of an Oil Refinery

Techno‐economic analysis of direct combustion and gasification systems for off‐grid energy supply: A case for organic rankine cycle and dual fluidized‐bed

Optimization of the Technological Parameters for Obtaining Zn-Ti Based Composites to Increase the Performance of H2S Removal from Syngas

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