Recent advances and prospects in high purity H2 production from sorption enhanced reforming of bio-ethanol and bio-glycerol as carbon negative processes: A review

Carbon Capture Science & Technology, Год журнала: 2023, Номер 8, С. 100129 - 100129

Опубликована: Июль 17, 2023

Hydrogen has wide applications in the chemical and petroleum industries is a clean energy carrier for electrical power generation transportation. However, current industries, H2 mainly obtained from steam reforming of natural gas coal gasification, which resulted huge emissions CO2 (greenhouse gases) high consumption purification. Hence, developing production technology sustainable routes with low carbon still urgent. Sorption-enhanced bio-ethanol (SESRE) sorption-enhanced bio-glycerol (SESRG), coupled in-situ capture or bio-glycerol, are promising strategies to yield purity without emitting into atmosphere. In these strategies, can be produced when energy-consumption process such as purification avoided; besides, negative achieved captured used sequestered. The catalysts play pivotal role processes, dual-functional materials (DFMs) well regarded most solid that contribute high-purity capture. Thus far, there no criterion guide DFMs engineering SESRE SESRG processes. this work, comprehensive review recent advances prospects presented, provides constructive insight development technology. optimum operating conditions systems analyzed via thermodynamics kinetics, research progress critically reviewed. Furthermore, reaction pathways mechanisms were discussed improve understanding design. Finally, prospect challenges outlooked.

Язык: Английский

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Strategies to improve CaO absorption cycle stability and progress of catalysts in Ca-based DFMs for integrated CO2 capture-conversion: A critical review

Journal of environmental chemical engineering, Год журнала: 2023, Номер 11(5), С. 111047 - 111047

Опубликована: Сен. 19, 2023

Язык: Английский

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Chemical looping CO2 capture and in-situ conversion as a promising platform for green and low-carbon industry transition: Review and perspective

Carbon Capture Science & Technology, Год журнала: 2023, Номер 10, С. 100169 - 100169

Опубликована: Ноя. 23, 2023

Industrial flue gas and solid waste with the characteristics of large emissions complicated distributions are two issues for industry, due to that sequential CO2 capture utilization shows high energy-cost penalties faces low reutilization ratio. As a powerful process intensification strategy, chemical looping in-situ conversion (CL-ICCC) provides an effective solution handle those issues. However, current researches on CL-ICCC aim develop configurations, design bifunctional materials, reveal reaction mechanisms, which ignore how apply realizing purification simultaneously in industry. Herein, after reviewing status upgrade, industrial system integration, perspective is proposed highlight as promising platform green low-carbon industry transition. In system, enters reactor reacts derived materials separate from other impurities. reactor, reduction agents introduced spill over convert it into value-added chemicals. This review provide new pathway establish self-digestion system.

Язык: Английский

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Chemical looping CO2 capture and in-situ conversion: Fundamentals, process configurations, bifunctional materials, and reaction mechanisms

Applications in Energy and Combustion Science, Год журнала: 2023, Номер 16, С. 100218 - 100218

Опубликована: Ноя. 4, 2023

As an emerging and promising technology to debate the energy environment issues raised by anthropogenic CO2 emissions, chemical looping capture in-situ conversion (CL-ICCC) exhibits merit of high efficiency, low cost, safety achieve integrated (ICCC) eliminating purification, compression, transportation, storage procedures. However, interpretation state-of-the-art CL-ICCC are still unclear, which contribute a harmful effect on promoting this for industrial applications. Herein, work presents timely review giving fundamental discussions definition, process configuration, bifunctional material, reaction mechanism thermo-economic behavior. Based product distributions (syngas, CO, CH4, C2H4/C3H6), systems using abundant materials with flexible combinations sorbents catalysts classified satisfy demand customers. Lots moderating strategies proposed enhance activity stability meanwhile, is revealed explain underlying reason superior performance. The challenges future prospectives from aspects microscopic mechanism, material rational design, equipment development system integration optimization discussed provide possible suggestions. This aims illustrate more clearly accelerate its commercial demonstration.

Язык: Английский

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Ultra-low carbon dioxide emissions for biomass gasification using air with nearly 100% CO2 capture and conversion

Chemical Engineering Journal, Год журнала: 2024, Номер 484, С. 149778 - 149778

Опубликована: Фев. 17, 2024

Addressing the high CO 2 emissions from biomass gasification is crucial for enhancing sustainability and environmental profile of this technology.This work proposes a novel approach by integrating process with carbon capture utilisation (IGCCU), to tackle substantial challenge traditional gasification, which leads emissions.Specifically, during stage, successfully captured 14.39 mmol g -1 lignin , based on benchmark conditions.The subsequently converted into hydrogenation achieving peak concentration 1.58 %.The results reveal that maintaining marble feeding mass 6 setting reaction temperatures capture, at 500 • C, 400 550 respectively, consistently ensures ultra-low throughout entire process."Ultra-low emissions" specifically refers absence signals entirety IGCCU process, encompassing stages such as conversion.Notably, conversion selectivity remain stable 100 % level over 8 cycles only was generated underscoring excellent stability technology.Furthermore, low-cost sorbent material (waste powder) readily available agent (air) enhance economic feasibility new technology while demonstrating robust resistance deposition.

Язык: Английский

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Experimental investigation of integrated CO2 capture and conversion to syngas via calcium looping coupled with dry reforming of CH4

Chemical Engineering Journal, Год журнала: 2024, Номер 485, С. 149866 - 149866

Опубликована: Фев. 20, 2024

Язык: Английский

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Material design and prospect of dual-functional materials for integrated carbon dioxide capture and conversion

Carbon Capture Science & Technology, Год журнала: 2024, Номер 12, С. 100207 - 100207

Опубликована: Март 11, 2024

Large amounts of CO2 were discharged into the atmosphere, resulting in a severe greenhouse effect and inducing ecological environmental problems that threaten human survival. Integrated carbon dioxide capture conversion (ICCC) with Dual Functional Materials (DFMs) was promising process to emission flue gas convert it value-added chemicals, reducing energy consumption economic cost. The catalytic component DFMs enhances hydrogen source activation promotes carbonate hydrogenation produce high chemicals. achieved regeneration dual-functional materials, which is key realizing ICCC process. This research focuses on development different sources (hydrogen or light alkanes) for recent years. In addition, reaction mechanism components modification discussed improve in-situ activity Finally, future prospects anticipated guide application scenarios

Язык: Английский

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Rapid Absorption and Desorption of CO₂ by Deep Eutectic Solvents via Reversible CO₂-Triggered Proton Transfer Process

ACS Sustainable Chemistry & Engineering, Год журнала: 2024, Номер 12(10), С. 3987 - 3995

Опубликована: Фев. 28, 2024

Due to low cost and high efficiency, amino-based functionalized deep eutectic solvents (DESs) have been widely investigated in CO2 capture. The amino group reacted with a quantized ratio of 2:1 form carbamate quaternary ammonium cation, which not only limited the absorption capacity but also led dramatic increase viscosity. In this work, we proposed new strategy improve DESs inhibit viscosity by changing proton transfer site from –NH2 –N═ prevent formation –NH–COO– –NH3+ using aromatic amines ethylene glycol (EG). EG exhibited significant activation effect on 4-aminopyridine (AP). AP was enhanced 0.10 mol CO2/mol DES 0.60 at 303.15 K 101.3 kPa after forming EG. addition, saturated could be rapidly regenerated within 20 min 353.15 K, performance maintained six cycles. Results nuclear magnetic resonance carbon spectra revealed protonation pyridine nitrogen. reaction path effectively reduced AP/EG (1:3) increased slightly 29.17 68.40 mPa·s absorption.

Язык: Английский

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The role of reverse Boudouard reaction during integrated CO2 capture and utilisation via dry reforming of methane

Chemical Engineering Journal, Год журнала: 2024, Номер 491, С. 151668 - 151668

Опубликована: Апрель 26, 2024

Integrated carbon capture and utilisation (ICCU) is an emerging technology for simultaneous CO2 adsorption conversion into value-added products. This provides a more sustainable approach compared to storage. Dual-functional materials (DFMs) that couple sorbents (e.g. CaO) catalysts Ni) enable direct of sorbed reactions like dry reforming methane (DRM). However, the potential interactions between sorbent catalyst components within DFMs may induce distinct mechanisms individual materials. Elucidating these synergies interfacial phenomena vital guiding rational design DFMs. article investigates respective roles Ni/SiO2 sol–gel synthesised CaO in integrated via (ICCU-DRM) using decoupling approach. Through decoupled reactor experiments, it found activates react with deposits from CH4 decomposition, achieving maximal CO H2 yields 43.41 mmol g−1 46.78 as well 87.2 % at 650 °C. Characterisation shows coke would encapsulate Ni nanoparticles be active Boudouard reaction, indicating sufficient catalyst-sorbent contact necessary spillover. In-situ DRIFTS reveals no obvious CH4-CaCO3 reaction occurs, chemisorption on enables reverse which further verified by DFT calculations. The findings elucidate dependent synergistic CaO/CaCO3 ICCU-DRM, highlight importance catalyst-adsorbent optimising dual-functional

Язык: Английский

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Role of Ionic Solvents in the Electrocatalytic CO₂ Conversion and H₂ Evolution Suppression: From Ionic Liquids to Deep Eutectic Solvents

ChemElectroChem, Год журнала: 2024, Номер 11(9)

Опубликована: Янв. 29, 2024

Abstract The ionic solvents, including both liquids (ILs) and deep eutectic solvents (DES), are deeply studied for their potential in the carbon dioxide (CO 2 ) capture its further electrochemical conversion using different electrocatalysts. aim of this review is to present critically compare role ILs DES activation CO reduction reaction RR) suppression hydrogen evolution (HER). Therefore, most relevant advances use these RR, either as neat medium or electrolyte molecular have been summarized discussed. A special focus has made on comparing current density, overpotential, faradaic efficiency products selectivity RR presence relaying those results with chemical composition. Herein, recent strategies reported literature based enhancing electrocatalytic reviewed, some new perspectives immobilized at electrode surface

Язык: Английский

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