4.7 Article

Thermal behavior of Cu-Mg-Al-Ba/Sr bifunctional composites during chemical looping combustion and HCl adsorption of MSW syngas

Journal

CHEMICAL ENGINEERING JOURNAL
Volume 430, Issue -, Pages -

Publisher

ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2021.132871

Keywords

Waste-to-Energy; Chemical looping combustion; Oxygen carrier; HCl removal; Sorbent regeneration

Funding

  1. National Environment Agency, Ministry of Sustainability and Environment, Singapore, under the Waste-to-Energy Competitive Research Programme [WTE CRP 1701 105]

Ask authors/readers for more resources

CuO Oxygen carrier (OC) and Ba/Sr sorbent supported by Mg-Al composites synthesized by mechanical mixing exhibited great reactivity and stability during the three-stage MSW syngas chemical looping combustion and HCl adsorption (CLCA) process. The Ba/Sr sorbent slightly influenced the redox ability of OC but had no impact on MSW syngas combustion, maintaining stability for 20 cycles. Higher H2O content and temperature facilitated sorbent regeneration for better HCl adsorption efficiency, and Ba-loading composite showed superior HCl adsorption performance due to its better regeneration efficiency. The migration of CuO/Cu to the surface enhanced stability in mechanical strength, elemental composition, and redox ability during long-term operation.
Mg-Al-supported composites of CuO Oxygen carrier (OC) and Ba/Sr sorbent synthesized by mechanical mixing were used for three-stage process of MSW syngas chemical looping Combustion and HCl adsorption (CLCA). The syngas combustion and HCl adsorption efficiencies as well as thermal behavior of the composites were investigated. It was found that the composites exhibited great reactivity and stability during cyclic CLCA process. The Ba/Sr sorbent slightly influenced the redox ability of OC owing to the presence of Cu2MgO3, but exhibited no impact on the MSW syngas combustion, achieving nearly full combustion during 20 cycles. Regarding to the conditions for sorbent regeneration, higher H2O content and temperature facilitated sorbent regeneration, allowing better HCl adsorption at fuel reaction stage. The sorbent regeneration conditions were optimized at 60 vol% H2O and 900 degrees C. Ba-loading composite exhibited better HCl adsorption performance than the Sr-loading during 20 CLCA cycles maintaining 25-35 ppmv HCl in flue gas because of its better regeneration efficiency (similar to 95%). The CuO/Cu migration to the surface enhanced the stability on mechanical strength, elemental composition and redox ability without appearing significant agglomeration during 20 cycles, maintaining the stability in the reactivity with MSW syngas for long-term operation.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.7
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

Article Energy & Fuels

Sorbents for high-temperature removal of alkali metals and HCl from municipal solid waste derived syngas

Ya Zhao, Guicai Liu, Jijiang Huang, Andrei Veksha, Xinyi Wu, Apostolos Giannis, Teik Thye Lim, Grzegorz Lisak

Summary: A highly-active sorbent based on alumina has been synthesized for simultaneous removal of alkali metals and HCl from syngas. The sorbent showed the highest removal efficiency compared to other sorbents. Physical sorption governed the removal of alkali metals, while chemical sorption governed the removal of HCl. The physicochemical adsorption interactions between the sorbent and alkali metals and HCl contributed to their simultaneous removal.
Article Engineering, Environmental

Unravelling the synergism of catalytic oxidation and filtration in Co-Mn-oxide impregnated ceramic membrane for intensified degradation of recalcitrant micropollutant with peroxymonosulfate

Arvin Liangdy, Wen Jie Lee, Panyawut Tonanon, Richard David Webster, Shane Allen Snyder, Teik-Thye Lim

Summary: A catalytic ceramic membrane (CCM) impregnated with Co-Mn-oxide via citrate sol-gel method was used to activate peroxymonosulfate (PMS) and degrade sulfamethoxazole (SMX). The Co-Mn bimetallic oxides exhibited higher catalytic activity compared to their single oxides due to the synergistic effect between the two cations. Optimal performance of the CCM/PMS process was achieved by controlling catalyst loading, oxidant dosage, and pollutant concentration.

CHEMICAL ENGINEERING JOURNAL (2023)

Article Thermodynamics

Hydrogen and power co-production from autothermal biomass sorption enhanced chemical looping gasification: Thermodynamic modeling and comparative study

Guicai Liu, Ya Zhao, Stephan Heberlein, Andrei Veksha, Apostolos Giannis, Wei Ping Chan, Teik Thye Lim, Grzegorz Lisak

Summary: This study compared the co-production of H-2 and power from biomass sorption enhanced gasification and sorption enhanced chemical looping gasification under autothermal conditions. The results showed that sorption enhanced chemical looping gasification achieved higher energy efficiency than sorption enhanced gasification.

ENERGY CONVERSION AND MANAGEMENT (2022)

Article Green & Sustainable Science & Technology

Effect of alkali earth metal doping on the CuO/Al2O3 oxygen carrier agglomeration resistance during chemical looping combustion

Guicai Liu, Chia Chyi Chang, Ya Zhao, Andrei Veksha, Apostolos Giannis, Teik Thye Lim, Grzegorz Lisak

Summary: The influence of alkali earth metals (AEMs) doping on CuO/Al2O3 oxygen carrier in chemical looping combustion (CLC) was investigated. The doping of AEMs enhanced the performance and stability of the oxygen carrier, and deferred the agglomeration. The improved performance was attributed to the enhanced redox kinetics and the migration of AEM species during the synthesis process.

JOURNAL OF CLEANER PRODUCTION (2022)

Article Engineering, Environmental

A techno-economic assessment of the reutilisation of municipal solid waste incineration ash for CO2 capture from incineration flue gases by calcium looping

Lek Hong Lim, Preston Tan, Wei Ping Chan, Andrei Veksha, Teik-Thye Lim, Grzegorz Lisak, Wen Liu

Summary: Waste-to-Energy through MSW incineration is an effective waste management strategy, but it releases CO2 and produces ash. This study explores the use of ash-derived sorbents for CO2 capture. The analysis shows that the addition of certain fuels increases the cost of electricity, but also reduces CO2 emissions. Optimizing energy-intensive processes and policy support are important for further improvement and adoption of negative emission technologies.

CHEMICAL ENGINEERING JOURNAL (2023)

Article Engineering, Environmental

Inherently separated syngas production from plastic waste fast pyrolysis integrated with volatile chemical looping conversion with CO2 splitting

Guicai Liu, Grzegorz Lisak

Summary: This study proposes a new concept of converting plastic waste into high-value products and utilizing CO2 through fast pyrolysis integrated with volatile chemical looping CO2 splitting. Three conversion modes were evaluated, and it was found that the cracking mode with Ni/Al2O3 or Ni/MgAl2O4 catalyst exhibited better performance in fuel conversion and syngas separation. The cracking mode's efficiency increased with higher temperature, but the interaction between Ni and the support limited the full separation of syngas.

CHEMICAL ENGINEERING JOURNAL (2023)

Article Engineering, Environmental

Sequential wet extraction of phosphorus from sewage sludge using alum sludge: Reassessing the aluminium-phosphorus speciation using experimental and simulation approach

Satya Brat Tiwari, Thomas J. N. Hooper, Andrei Veksha, Wei Ping Chan, Xunchang Fei, Wen Liu, Grzegorz Lisak, Teik-Thye Lim

Summary: This study investigated the leaching of phosphorus from sewage sludge (SS) using alkaline treatment, with the addition of alum sludge (AS) and acidic pretreatment. The results showed that the addition of AS improved the recovery efficiency of phosphorus during alkaline leaching, and acidic pretreatment prevented the loss of inorganic phosphorus. This method can be applied globally to improve phosphorus leaching efficiency from SS and achieve dual waste management.

CHEMICAL ENGINEERING JOURNAL (2023)

Article Engineering, Environmental

Oxygen carrier derived from ferric sludge for chemical looping combustion of MSW syngas: Waste derived material performance and carbon footprint assessment

Chat How Joewin Koh Yang, Guicai Liu, Wei Ping Chan, Ya Zhao, Mei Ping Vernette Chin, Wen Liu, Teik Thye Lim, Grzegorz Lisak

Summary: The utilization of ferric sludge as an oxygen carrier (OC) for chemical looping combustion (CLC) of municipal solid waste (MSW) syngas was explored. The performance of ferric sludge in CLC and simultaneous HCl removal was evaluated and compared with iron ore as a benchmarked OC. The results showed that ferric sludge performed better than iron ore in terms of syngas combustion efficiency and HCl removal. Temperature comparison revealed that ferric sludge performed better at lower CLC temperature. Agglomeration was observed when ferric sludge was used in extended CLC cycles, but it was reduced when inert alpha-Al2O3 support was used.

CHEMICAL ENGINEERING JOURNAL (2023)

Review Engineering, Environmental

Hybrid process of persulfate-based advanced oxidation with MeOx-functionalized catalytic ceramic membrane for synergistic removal of micropollutants: Recent developments, new insights, and prospects

Arvin Liangdy, Wen Jie Lee, Yueping Bao, Wen-Da Oh, Teik-Thye Lim

Summary: The hybrid catalytic oxidation and membrane filtration process is becoming a popular research topic for removing micropollutants in water. This review focuses on the use of metal oxide-functionalized catalytic ceramic membranes (CCMs) in sulfate radical-based hybrid processes. The fabrication methods of MeOx-CCMs and various characterization techniques are discussed. The importance of intrinsic catalytic and membrane properties in the hybrid process is emphasized, as well as the challenges in real water remediation.

CHEMICAL ENGINEERING JOURNAL (2023)

Review Energy & Fuels

Cu-based oxygen carriers for chemical looping processes: Opportunities and challenges

Guicai Liu, Grzegorz Lisak

Summary: This review summarizes the basic properties and opportunities of Cu-based OCs in various chemical looping processes. It covers the applications of Cu-based OCs in chemical looping combustion (CLC), chemical looping oxygen uncoupling (CLOU), chemical looping air separation (CLAS), chemical looping for syngas/H2 production, integrated CaO/CuO looping process, and thermochemical energy storage (TCES). The review also discusses the technical challenges and current strategies related to agglomeration, attrition, and ash accumulation. It provides insights and guidance for the design and development of Cu-based OCs and their applications in chemical looping processes.
Article Materials Science, Multidisciplinary

Immobilization of cobalt-based polyoxometalates on titanium dioxide nanorod for enhancement in photoelectrochemical water oxidation

Boon Chong Ong, Zhong Chen, Teik-Thye Lim, ZhiLi Dong

Summary: In this study, an effective hole scavenger layer of polyoxometalates (POMs) with excellent redox properties and high durability is coated on titanium dioxide (TiO2) nanorods to enhance the photoelectrochemical (PEC) water oxidation activity. The Co-POMs layers on TiO2 can effectively retard the recombination of photoinduced electron-hole pairs by extracting and transporting the generated holes, resulting in improved overall PEC performance under neutral conditions. This work provides a facile and promising method for promoting PEC water oxidation by depositing Co-POMs layers on TiO2 nanorods.

MATERIALS CHEMISTRY AND PHYSICS (2023)

Article Environmental Sciences

Catalytic activity of H2O2 by goethite and lepidocrocite: Insight from 5-bromosalicylic acid removal mechanism and density functional theory calculation (ID:CHEM114760)

Wanyi Huang, Yixing Yuan, Dan Zhong, Peng Zhang, Arvin Liangdy, Teik-Thye Lim, Wencheng Ma, Yuan Yuan

Summary: We compared the elimination of 5-bromosalicylic acid (BSA) in goethite (alpha-FeOOH)/H2O2 and lepidocrocite (gamma-FeOOH)/H2O2 systems. BSA could be adsorbed on alpha- and gamma-FeOOH and effectively degraded after the addition of H2O2. The systems showed differences in adsorption kinetics and degradation mechanisms, with gamma-FeOOH having greater adsorption ability and alpha-FeOOH performing better in catalyzing the decomposition of H2O2.

CHEMOSPHERE (2023)

Article Engineering, Environmental

Phosphorous recovery from water via batch adsorption enrichment combined with struvite crystallization in a fluidized bed reactor

Amadu T. Bah, Ziyi Shen, Junna Yan, Feihu Li, Teik Thye Lim

Summary: By combining batch adsorption enrichment with struvite crystallization, we prepared ternary layered double hydroxides (LDHs) with P-preferring elements and evaluated their performance in recovering P from water. The LDHs demonstrated high P adsorption capacities and the recycling tests showed good enrichment for P. Moreover, more than 96% of phosphorus in the P-enriched eluates can be efficiently reclaimed via struvite crystallization. These findings demonstrate the feasibility of combining adsorption enrichment with struvite crystallization for P recovery.

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING (2023)

Article Engineering, Environmental

A metal-phenolic network-assembled nanotrigger evokes lethal ferroptosis via self-supply loop-based cytotoxic reactions

Xinping Zhang, Yuxin Guo, Xiaoyang Liu, Shun-Yu Wu, Ya-Xuan Zhu, Shao-Zhe Wang, Qiu-Yi Duan, Ke-Fei Xu, Zi-Heng Li, Xiao-Yu Zhu, Guang-Yu Pan, Fu-Gen Wu

Summary: This study develops a nanotrigger HCFT for simultaneous photodynamic therapy and light-triggered ferroptosis therapy. The nanotrigger can relieve tumor hypoxia, induce enhanced photodynamic reaction, and facilitate the continuation of Fenton reaction, ultimately leading to lethal ferroptosis in tumor cells.

CHEMICAL ENGINEERING JOURNAL (2024)

Article Engineering, Environmental

XAS and DFT investigation of atomically dispersed Cu/Co alloyed Pt local structures under selective hydrogenation of acetylene to ethylene

Olumide Bolarinwa Ayodele, Toyin Daniel Shittu, Olayinka S. Togunwa, Dan Yu, Zhen-Yu Tian

Summary: This study focused on the semihydrogenation of acetylene in an ethylene-rich stream using two alloyed Pt catalysts PtCu and PtCo. The PtCu catalyst showed higher activity and ethylene yield compared to PtCo due to its higher unoccupied Pt d-orbital density. This indicates that alloying Pt with Cu is more promising for industrial relevant SHA catalyst.

CHEMICAL ENGINEERING JOURNAL (2024)

Article Engineering, Environmental

A multifunctional emitter with synergistical adjustment of rigidity and flexibility for high-performance data-recording and organic light-emitting devices with hot exciton channel

Guowei Chen, Wen-Cheng Chen, Yaozu Su, Ruicheng Wang, Jia-Ming Jin, Hui Liang, Bingxue Tan, Dehua Hu, Shaomin Ji, Hao-Li Zhang, Yanping Huo, Yuguang Ma

Summary: This study proposes an intramolecular dual-locking design for organic luminescent materials, achieving high luminescence efficiency and performance for deep-blue organic light-emitting diodes. The material also exhibits unique mechanochromic luminescence behavior and strong fatigue resistance.

CHEMICAL ENGINEERING JOURNAL (2024)

Article Engineering, Environmental

Cobalt/nickel purification by solvent extraction with ionic liquids in millifluidic reactors: From single-channel to numbered-up configuration with solvent recycle

Joren van Stee, Gregory Hermans, Jinu Joseph John, Koen Binnemans, Tom Van Gerven

Summary: This work presents a continuous solvent extraction method for the separation of cobalt and nickel in a millifluidic system using Cyphos IL 101 (C101) as the extractant. The optimal conditions for extraction performance and solvent properties were determined by investigating the effects of channel length, flow rate, and temperature. The performance of a developed manifold structure was compared to a single-channel system, and excellent separation results were achieved. The continuous separation process using the manifold structure resulted in high purity cobalt and nickel products.

CHEMICAL ENGINEERING JOURNAL (2024)

Article Engineering, Environmental

Environment-triggered nanoagent with programmed gas release performance for accelerating diabetic infected wound healing

Yan Xu, Jingai Jiang, Xinyi Lv, Hui Li, Dongliang Yang, Wenjun Wang, Yanling Hu, Longcai Liu, Xiaochen Dong, Yu Cai

Summary: A programmed gas release nanoparticle was developed to address the challenges in treating diabetic infected wounds. It effectively removes drug-resistant pathogens and remodels the wound microenvironment using NO and H2S. The nanoparticle can eliminate bacteria and promote wound healing through antibacterial and anti-inflammatory effects.

CHEMICAL ENGINEERING JOURNAL (2024)

Article Engineering, Environmental

Synergistic dopa-reinforced fluid hydrosol as highly efficient coal dust suppressant

Tong Xia, Zhilin Xi, Lianquan Suo, Chen Wang

Summary: This study investigated a highly efficient coal dust suppressant with low initial viscosity and high adhesion-solidification properties. The results demonstrated that the dust suppressant formed a network of multiple hydrogen bonding cross-linking and achieved effective adhesion and solidification of coal dust through various chemical reactions.

CHEMICAL ENGINEERING JOURNAL (2024)

Article Engineering, Environmental

First principle-based rate equation theory for the carbonation kinetics of CaO with CO2 in calcium looping

Jinzhi Cai, Zhenshan Li

Summary: A density functional theory-based rate equation was developed to predict the gas-solid reaction kinetics of CaO carbonation with CO2 in calcium looping. The negative activation energy of CaO carbonation close to equilibrium was accurately predicted through experimental validation.

CHEMICAL ENGINEERING JOURNAL (2024)

Article Engineering, Environmental

Significant enhancement of high-temperature capacitive energy storage in dielectric films through surface self-assembly of BNNS coatings

Jianxiong Chen, Fuhao Ren, Ningning Yin, Jie Mao

Summary: This study presents an economically efficient and easily implementable surface modification approach to enhance the high-temperature electrical insulation and energy storage performance of polymer dielectrics. The self-assembly of high-insulation-performance boron nitride nanosheets (BNNS) on the film surface through electrostatic interactions effectively impedes charge injection from electrodes while promoting charge dissipation and heat transfer.

CHEMICAL ENGINEERING JOURNAL (2024)

Article Engineering, Environmental

Medium entropy metal oxide induced *OH species targeted transfer strategy for efficient polyethylene terephthalate plastic recycling

Zijian Li, Zhaohui Yang, Shao Wang, Hongxia Luo, Zhimin Xue, Zhenghui Liu, Tiancheng Mu

Summary: This study reports a strategy for upgrading polyester plastics into value-added chemicals using electrocatalytic methods. By inducing the targeted transfer of *OH species, polyethylene terephthalate was successfully upgraded into potassium diformate with high purity. This work not only develops an excellent electrocatalyst, but also provides guidance for the design of medium entropy metal oxides.

CHEMICAL ENGINEERING JOURNAL (2024)

Article Engineering, Environmental

A novel environmental friendly and sustainable process for textile dyeing with sulphur dyes for cleaner production

Navneet Singh Shekhawat, Surendra Kumar Patra, Ashok Kumar Patra, Bamaprasad Bag

Summary: This study primarily focuses on developing a sulphur dyeing process at room temperature using bacterial Lysate, which is environmentally friendly, energy and cost effective, and sustainable. The process shows promising improvements in dye uptake and fastness properties.

CHEMICAL ENGINEERING JOURNAL (2024)

Article Engineering, Environmental

Highly efficient and sustainable cationic polyvinyl chloride nanofibrous membranes for removal of E. coli and Cr (VI): Filtration and adsorption

Dengjia Shen, Hongyang Ma, Madani Khan, Benjamin S. Hsiao

Summary: This study developed cationic PVC nanofibrous membranes with high filtration and adsorption capability for the removal of bacteria and hexavalent chromium ions from wastewater. The membranes demonstrated remarkable performance in terms of filtration efficiency and maximum adsorption capacity. Additionally, modified nanofibrous membranes were produced using recycled materials and showed excellent retention rates in dynamic adsorption processes.

CHEMICAL ENGINEERING JOURNAL (2024)

Article Engineering, Environmental

Concerted proton-coupled electron transfer promotes NiCoP nanowire arrays for efficient overall water splitting at industrial-level current density

Xiaoyan Wang, Zhikun Wang, Ben Jia, Chunling Li, Shuangqing Sun, Songqing Hu

Summary: Inspired by photosystem II, self-supported Fe-doped NiCoP nanowire arrays modified with carboxylate were constructed to boost industrial-level overall water splitting by employing the concerted proton-coupled electron transfer mechanism. The introduction of Fe and carboxyl ligand led to improved catalytic activity for HER and OER, and NCFCP@NF exhibited long-term durability for overall water splitting.

CHEMICAL ENGINEERING JOURNAL (2024)

Article Engineering, Environmental

Self-limiting growth of thin dense LTA membranes boosts H2 gas separation performance

Pengyao Yu, Ge Yang, Yongming Chai, Lubomira Tosheva, Chunzheng Wang, Heqing Jiang, Chenguang Liu, Hailing Guo

Summary: Thin LTA zeolite membranes were prepared through secondary growth of nano LTA seeds in a highly reactive gel, resulting in membranes with superior permeability and selectivity in gas separation applications.

CHEMICAL ENGINEERING JOURNAL (2024)

Article Engineering, Environmental

Prediction of phosphate adsorption amount, capacity and kinetics via machine learning: A generally physical-based process and proposed strategy of using descriptive text messages to enrich datasets

Baiqin Zhou, Huiping Li, Ziyu Wang, Hui Huang, Yujun Wang, Ruichun Yang, Ranran Huo, Xiaoyan Xu, Ting Zhou, Xiaochen Dong

Summary: The use of machine learning to predict the performance of specific adsorbents in phosphate adsorption shows great promise in saving time and revealing underlying mechanisms. However, the small size of the dataset and insufficient detailed information limits the model training process and the accuracy of results. To address this, the study employs a fuzzing strategy that replaces detailed numeric information with descriptive text messages on the physiochemical properties of adsorbents. This strategy allows the recovery of discarded samples with limited information, leading to accurate prediction of adsorption amount, capacity, and kinetics. The study also finds that phosphate uptake by adsorbents is generally through physisorption, with some involvement of chemisorption. The framework established in this study provides a practical approach for quickly predicting phosphate adsorption performance in urgent scenarios, using easily accessible information.

CHEMICAL ENGINEERING JOURNAL (2024)

Article Engineering, Environmental

Absorption of hydrophobic volatile organic compounds in renewable vegetable oils and esterified fatty acids: Determination of gas-liquid partitioning coefficients as a function of temperature

Paula Alejandra Lamprea Pineda, Joren Bruneel, Kristof Demeestere, Lisa Deraedt, Tex Goetschalckx, Herman Van Langenhove, Christophe Walgraeve

Summary: This study evaluates the use of four esterified fatty acids and three vegetable oils as absorption liquids for hydrophobic VOCs. The experimental results show that isopropyl myristate is the most efficient liquid for absorbing the target VOCs.

CHEMICAL ENGINEERING JOURNAL (2024)