4.8 Article

Optimizing performance of iron-rich sludge ash as cost-effective oxygen carrier by calcium-based additive for syngas production from biomass chemical-looping gasification

Related references

Note: Only part of the references are listed.
Article Engineering, Environmental

Sorption-enhanced chemical looping steam reforming of glycerol with CO2 in-situ capture and utilization

Binlin Dou et al.

Summary: In this study, a sorption-enhanced chemical looping steam reforming process for glycerol was proposed to achieve simultaneous CO2 capture and conversion, resulting in the generation of high purity hydrogen and syngas. The results demonstrated that the use of appropriate catalysts and sorbents can effectively generate hydrogen and reduce CO2 emissions in an integrated process.

CHEMICAL ENGINEERING JOURNAL (2023)

Article Agricultural Engineering

Influence of iron-containing petrochemical sludge ash on the pyrolysis of pine wood: Thermal behaviors, thermodynamic analysis, and kinetic parameters

Jianbiao Chen et al.

Summary: The pyrolysis characteristics and kinetics of pine wood with iron-containing petrochemical sludge ash were studied, showing that the presence of PSA promoted the conversion of PW. Thermodynamic analysis revealed a gradual loss of oxygen from Fe2O3 in PSA during co-pyrolysis. Kinetic parameters showed a decrease in activation energy with PSA addition, with the most suitable kinetic models being D-3 and D-4 for PW and its mixtures with PSA, respectively.

BIORESOURCE TECHNOLOGY (2022)

Article Thermodynamics

Cellulose gasification with Ca-Fe oxygen carrier in chemical-looping process

Genyang Tang et al.

Summary: Biomass-derived chemical looping gasification (BCLG) utilizes Ca-Fe oxygen carriers as catalysts to promote efficient lignocellulose conversion and hydrogen-enriched syngas production. Experimental results demonstrate the reaction mechanisms and synergistic effects of Ca-Fe oxygen carriers at different temperatures, providing insights for explaining their performance.

ENERGY (2022)

Article Energy & Fuels

Syngas production by chemical looping co-gasification of rice husk and coal using an iron-based oxygen carrier

Ming Luo et al.

Summary: The study investigated the chemical looping co-gasification of rice husk and coal using iron ore as an oxygen carrier, revealing significant synergistic effects between the two fuels under specific conditions, leading to increased carbon conversion efficiency and gasification efficiency.
Article Energy & Fuels

Syngas production from cellulose solid waste by enhanced chemical looping gasification using Ca-Fe bimetallic oxygen carrier with porous structure

Genyang Tang et al.

Summary: Chemical looping gasification (CLG) is a promising and innovative technology for producing synthesis gases. Using metal oxide as oxygen carrier in CLG can improve the efficiency and feasibility of the system. The research shows that Ca-Fe bimetallic oxygen carriers with porous structure can increase the synthesis gas yield and carbon conversion efficiency, which makes them potential candidates for CLG of cellulose solid waste.
Article Energy & Fuels

Understanding the Behavior of Dicalcium Ferrite (Ca2Fe2O5) in Chemical Looping Syngas Production from CH4

Made Santihayu Sukma et al.

Summary: Using methane as the reductant in chemical looping syngas production showed improved activity, with significant induction periods observed during reduction indicating that metallic Fe acted as a catalyst for further reduction. The behavior in a thermogravimetric analyzer and a fluidized bed was comparable, with no degradation with cycling, and the separation of metallic Fe onto the surface likely contributed to the improved kinetics.

ENERGY & FUELS (2022)

Review Energy & Fuels

Research Progress and Perspectives of Solid Fuels Chemical Looping Reaction with Fe-Based Oxygen Carriers

Yinhe Liu et al.

Summary: Chemical looping (CL) is a promising technology with CO2 capture capabilities in industrial applications. Iron based (Fe-based) materials are the most likely candidates for oxygen carriers due to their economic and eco-friendly characteristics. This review provides a comprehensive overview of Fe-based oxygen carriers, including their preparation methods, characteristics, and reaction mechanisms. The application of Fe-based oxygen carriers in chemical looping processes and the recent progress in reaction mechanism studies are also discussed. The challenges and prospects of Fe-based oxygen carriers are presented along with effective strategies. This review aims to provide insights into the practical application of Fe-based oxygen carriers in chemical looping.

ENERGY & FUELS (2022)

Article Agricultural Engineering

Catalytic co-pyrolysis of microwave pretreated chili straw and polypropylene to produce hydrocarbons-rich bio-oil

Xikui Zhang et al.

Summary: This study investigated the kinetic behavior and products of the co-pyrolysis of chili straw and polypropylene under different conditions. Results showed that adding HZSM-5 increased the aromatic hydrocarbons in the product and decreased the residual mass, while microwave pretreatment at higher power levels reduced oxygenated composition and increased weight loss rate peak, with a decrease in activation energy.

BIORESOURCE TECHNOLOGY (2021)

Article Energy & Fuels

Direct chemical looping gasification of pine sawdust using Fe2O3-rich sludge ash as an oxygen carrier: Thermal conversion characteristics, product distributions, and gasification performances

Fang Xu et al.

Summary: The thermal characteristics and kinetic parameters of direct chemical looping gasification of pine sawdust were studied. The presence of SA and the increase in SA ratios were found to promote the conversion of PS, while decreasing gasification performance. Gasification temperature had a significant impact on the DCLG performance of PS, with the highest heating value of syngas obtained at 750 degrees C. The research results provide useful guidance for the potential application of Fe2O3-rich sludge ash as an oxygen carrier in biomass feedstock gasification.
Article Energy & Fuels

Hydrogen-rich syngas production from chemical looping gasification of lignite by using NiFe2O4 and CuFe2O4 as oxygen carriers

Kun Zhao et al.

Summary: Chemical looping gasification utilizing NiFe2O4 synthesized by sol-gel method as oxygen carrier at an O/C ratio of 1 exhibits the highest gasification reactivity and H-2 production efficiency during lignite gasification. The addition of steam significantly improves the total gas yield and H-2/CO ratio of syngas, offering flexibility in adjusting the H-2/CO ratio for downstream processes.
Article Energy & Fuels

Ca-enhanced hematite oxygen carriers for chemical looping reforming of biomass pyrolyzed gas coupled with CO2 splitting

Guo-qiang Wei et al.

Summary: The combination of chemical looping reforming of biomass pyrolyzed gases and CO2 splitting, using Ca-enhanced hematite oxygen carriers, significantly improves the H2/CO ratio of gaseous products. The enhanced reactivity and selectivity of the oxygen carriers lead to high efficiency in CO2 conversion and CO yield. The metallic synergistic effect between Ca/Fe plays a crucial role in improving CO2 conversion efficiency by shifting the reaction equilibrium and enhancing ion diffusion.
Article Agricultural Engineering

Application of calcium oxide/ferric oxide composite oxygen carrier for corn straw chemical looping gasification

Jianjun Hu et al.

Summary: The study used CaO/Fe2O3 as a composite oxygen carrier for biomass chemical looping gasification (CLG), showing that adding CaO can significantly improve the quality of syngas and reduce greenhouse gas emissions. Various factors such as the ratio of Fe2O3 to CaO, steam to biomass, and oxygen carrier to biomass were found to affect the syngas composition, with temperature also playing a significant role in CLG gas yield. The possible reaction mechanism suggested that variations in Ca may be the main factor in gas composition fluctuation.

BIORESOURCE TECHNOLOGY (2021)

Article Engineering, Environmental

Renewable hydrogen production from chemical looping steam reforming of biodiesel byproduct glycerol by mesoporous oxygen carriers

Binlin Dou et al.

Summary: The study investigated the use of Ni-based MCM41 and SBA-15 oxygen carriers in chemical looping steam reforming for hydrogen production, with and without CeO2 promoter. Analysis of synthesized oxygen carriers showed thermal decomposition reactions and the catalytic effects of the carriers were observed when CeO2 promoter was used.

CHEMICAL ENGINEERING JOURNAL (2021)

Review Thermodynamics

A state-of-the-art review on thermochemical conversion of biomass for biofuel production: A TG-FTIR approach

Hwai Chyuan Ong et al.

ENERGY CONVERSION AND MANAGEMENT (2020)

Article Energy & Fuels

Syngas production by chemical looping gasification of rice husk using Fe-based oxygen carrier

Xiangneng Huang et al.

JOURNAL OF THE ENERGY INSTITUTE (2020)

Article Chemistry, Applied

Evaluation of Sr-substituted Ca2Fe2O5 as oxygen carrier in microalgae chemical looping gasification

Guicai Liu et al.

FUEL PROCESSING TECHNOLOGY (2019)

Article Chemistry, Applied

Chemical looping gasification of coal using calcium ferrites as oxygen carrier

Yanan Wang et al.

FUEL PROCESSING TECHNOLOGY (2019)

Article Energy & Fuels

Reactivity investigation on biomass chemical looping conversion for syngas production

Yuting Wu et al.

JOURNAL OF THE ENERGY INSTITUTE (2019)

Article Thermodynamics

Application of calcium ferrites as oxygen carriers for microalgae chemical looping gasification

Guicai Liu et al.

ENERGY CONVERSION AND MANAGEMENT (2018)

Article Chemistry, Physical

Syngas production by chemical looping gasification of biomass with steam and CaO additive

Yuting Wu et al.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2018)

Article Green & Sustainable Science & Technology

Hydrogen production from vegetable oil via a chemical looping process with hematite oxygen carriers

Guo-Qiang Wei et al.

JOURNAL OF CLEANER PRODUCTION (2018)

Article Chemistry, Analytical

Production of syngas from pyrolysis of biomass using Fe/CaO catalysts: Effect of operating conditions on the process

Shuangxia Yang et al.

JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS (2017)

Article Engineering, Environmental

CuO supported on olivine as an oxygen carrier in chemical looping processes with pine sawdust used as fuel

Xun Wang et al.

CHEMICAL ENGINEERING JOURNAL (2017)