Analysis of the sorption-enhanced chemical looping biomass gasification process: Performance assessment and optimization through design of experiment approach

Detchusananard, Thanaphorn; Im-orb, Karittha; Maréchal, François; Arpornwichanop, Amornchai

doi:10.1016/j.energy.2020.118190

Cited by 34 publications

(19 citation statements)

References 36 publications

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“…This result was consistent with the simulation results of Detchusananard et al. and Ge et al under autothermal conditions. , With the change in syngas composition, the H 2 /CO ratio increased from 1.62 to 3.34 but the heating value decreased from 11.03 to 9.72 MJ/Nm 3 . As shown in Figure , the S/B ratio regulated the H 2 /CO ratio of the syngas reasonably well, which left out the water gas shift process and reduced energy consumption and operating costs.…”

Section: Resultssupporting

confidence: 92%

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Performance Evaluation of Torrefaction Coupled with a Chemical Looping Gasification Process under Autothermal Conditions: Flexible Syngas Production from Biomass

Liu

Zhang

et al. 2022

Energy Fuels

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Herein, a coupled biomass torrefaction and chemical looping gasification (BTCLG) process was proposed, and process simulations were performed under autothermal conditions. The effects of operational parameters on product distribution with torrefaction temperatures from 240 to 300 °C, gasification temperatures from 700 to 880 °C, and steam/biomass (S/B) ratios from 0.5 to 1.5 were explored. The results showed that the process could stably operate under autothermal conditions. Torrefaction increased the syngas yield, heating value, and cold gas efficiency by 12.44, 5.11, and 36.73%, respectively. Moreover, it reduced the bed material circulation rate required for autothermal operation by 59.03%. At the torrefaction temperature of 240 °C, the syngas yield reached a maximum value of 0.78 Nm 3 /kg. Increases in the gasification temperature also positively impacted syngas production. However, the optimal gasification temperature was 810 °C based on the bed material circulation rate constraint. The syngas H 2 /CO ratio could be flexibly adjusted from 1.62 to 3.34 by changing the S/B ratio to meet downstream demands. Overall, the simulation results support the technical viability and demonstrate the excellent performance of the BTCLG process compared to the biomass CLG process.

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Section: Resultssupporting

confidence: 92%

“…This variation was mainly due to the water−gas shift (WGS) reaction. This result was consistent with the simulation results of Detchusananard et al and Ge et al under autothermal conditions 43,72. With the change in syngas composition, the H 2 /CO ratio increased from 1.62 to 3.34 but the heating value decreased from 11.03 to 9.72 MJ/Nm 3 .…”

supporting

confidence: 92%

Performance Evaluation of Torrefaction Coupled with a Chemical Looping Gasification Process under Autothermal Conditions: Flexible Syngas Production from Biomass

Liu

Zhang

et al. 2022

Energy Fuels

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“…Biomass was fed into RYield block where its decomposition was performed, followed by RGibbs block for gasification and RStoic block to simulate WGS and CO 2 capture via the carbonation reaction. Similar CaLG models were developed by Chen et al 15 and Detchusananard et al 49 It was assumed that the carbon conversion in the RGibbs reactor was 30%. This aimed to account for an incomplete carbon conversion that usually occurs in DFB reactors 50‐52 .…”

Section: Methodsmentioning

confidence: 99%

“…Additionally, irreversible reactions with sulfur compounds also contribute to sorbent deactivation. Similar model where RGibbs reactor block was utilized as calcination reactors was developed by Detchusananard et al 49 Finally, reallife SEG is also affected by tar deposits on sorbent particles. However, tar production was neglected in this simulation due to simplification of the process models, as well as it being impossible to model the tar deposits across the system.…”

Section: Sorption-enhanced Gasification Model Descriptionmentioning

confidence: 99%

Process development and performance assessment of flexible calcium looping biomass gasification for production of renewable gas with adjustable composition

Žalec

Hanak

Može

et al. 2021

Intl J of Energy Research

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Summary In recent years, the field of biomass gasification as a method of transforming biomass into a more useable gaseous fuel experienced expedited development since it represents a prominent way to achieve sustainability goals and targets set by the Paris accord and, more recently, the European Green Deal. The use of natural gas is projected to reduce with the transition toward exploitation of renewable gas, while a new area of hydrogen applications is also emerging. However, with uncertain production of current processes, and consumption patterns seen on the market, an opportunity for a new flexible process exists. This article investigates a concept process design of sorption‐enhanced gasification (SEG) based on calcium looping. Aspen Plus simulation software was used to develop and simulate the process models for flexible production of bio‐SNG or bio‐H2. The process parameters can be manipulated to either achieve a high‐purity bio‐H2 (>96 mol%) or high‐purity bio‐SNG (>95 mol%), as well as any other combination of the two main products. The concept process is based on a low‐pressure, low‐temperature dual‐fluidized bed reactor with steam as a gasifying agent and an additional downstream Sabatier process reactor to achieve high CH4 contents. The simulated process achieves process efficiency of up to 62.2%LHV and 78.0%LHV for H2 and CH4 production, respectively, with production yields reaching 0.112 kg H2/kg BM and 0.23 kg CH4/kg BM. These values were validated and benchmarked against comparable process designs, and the performance of the proposed process was found to be on par or superior. Overall, the proposed process design exhibits clear benefits of calcium looping gasification, with high process efficiency, negligible NOx, SO2, and H2S content, and high flexibility. Therefore, the proposed process addressed and successfully solved some of the key challenges of achieving viability of a gasification plant on a commercial scale.

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“…Dong et al [30] also confirmed that the addition of CaO to biochar increased H 2 at 700 °C. Detchusananard et al [31] stated that the ratio of S/C and gasification temperature were the parameters that most influenced the gasification of wood residue. However, the carbon conversion and gasification efficiency of the SESG process are pretty low at the existing gasification temperature range.…”

Section: Introductionmentioning

confidence: 99%

H 2 -rich syngas production by sorption enhanced steam gasification of palm empty fruit bunch

Aprianti¹,

Faizal²,

Said³

et al. 2022

Comptes Rendus. Chimie

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Hydrogen-rich syngas from palm empty fruit bunch has been produced using CaO and bentonite as absorbent and catalyst. The gasification process is carried out at 550-750 °C at atmospheric pressure in the fixed bed gasifier with steam to biomass ratio (S/B) of 0-2.5 and Ca/C ratio of 0-2. The results showed that CaO only acts as CO 2 absorbent during the process. Increasing the ratio of Ca/C and S/B has increased the concentration of H 2 and absorption of CO 2 in the syngas. The addition of CaO did not significantly increase the production of CH 4 and CO in the syngas. The H 2 concentration reaches about 78.16 vol% at 700 °C and Ca/C 2.

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Analysis of the sorption-enhanced chemical looping biomass gasification process: Performance assessment and optimization through design of experiment approach

Cited by 34 publications

References 36 publications

Performance Evaluation of Torrefaction Coupled with a Chemical Looping Gasification Process under Autothermal Conditions: Flexible Syngas Production from Biomass

Performance Evaluation of Torrefaction Coupled with a Chemical Looping Gasification Process under Autothermal Conditions: Flexible Syngas Production from Biomass

Process development and performance assessment of flexible calcium looping biomass gasification for production of renewable gas with adjustable composition

H 2 -rich syngas production by sorption enhanced steam gasification of palm empty fruit bunch

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