Article
Thermodynamics
Xin Yu, Dunxi Yu, Fangqi Liu, Jingkun Han, Jianqun Wu, Minghou Xu
Summary: The study found that high-sulfur petroleum coke has little impact on co-gasification, while rice straw shows a significant catalytic effect only after being completely gasified into ash. Under high-concentration steam conditions, the main components of synthesis gas are H-2 and CO2, and rice straw ash exhibits a violent melting state.
Article
Thermodynamics
Agnieszka Korus, Adam Klimanek, Slawomir Sladek, Andrzej Szlek, Airy Tilland, Stephane Bertholin, Nils Erland L. Haugen
Summary: The process of petcoke conversion in chemical looping combustion technology requires detailed knowledge about the reactions with O-2, CO2, and H2O. Experimental results showed that the reaction with CO2 was slow, and kinetic parameters of petcoke gasification were determined by applying different models to the data obtained from a custom test rig.
Article
Thermodynamics
Tianhong Zhou, Lichao Ge, Qian Li, Long Yang, Longhui Mai, Jing Huang, Yang Wang, Chang Xu
Summary: Isothermal pyrolysis experiments were conducted to optimize the utilization of petroleum coke. Combustion characteristics and gasification properties of petroleum coke and its semi-coke were investigated. Results showed that gas production increased with higher pyrolysis temperatures. The graphitization degree of semi-coke showed a decreasing and then increasing trend, reaching its lowest at 650 degrees C. Combustion performance improved with increased oxygen concentration, while gasification rate was higher for semi-coke than petroleum coke.
Review
Energy & Fuels
Ben Wang, Wei Li, Chuan Ma, Wu Yang, Deepak Pudasainee, Rajender Gupta, Lushi Sun
Summary: This paper summarizes the synergistic effects of co-gasification of petroleum coke (PC) with various carbon-based feedstocks on gasification reactivity, syngas production, and mineral transformation. The key parameters and approaches affecting the synergy are discussed, and the two main synergy mechanisms are explored. Suggestions for improving syngas quality and dealing with emerging feedstocks are provided.
JOURNAL OF THE ENERGY INSTITUTE
(2022)
Article
Engineering, Environmental
Lei Liang, Zhang Sun, Hang Zhang, Hao-Dong Liu, Jie-Ping Wang, Guang-Yue Li, Ying-Hua Liang
Summary: This study combines experimental and theoretical approaches to investigate the competitive effects between CO2 and additive H2O during coke gasification. The experimental results showed that H2O significantly enhanced the gasification rate of coke and inhibited the reaction between CO2 and coke. Theoretical simulations confirmed the experimental phenomena and provided a molecular-level reaction network. The findings of this study are important for the implementation and optimization of hydrogen-rich blast furnace technology.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Prapassorn Rugthaworn, Udomlak Sukatta, Prakit Sukyai
Summary: This study investigated the effect of ultrasound-assisted hydrogen peroxide (H2O2) pretreatment on sugar cane bagasse (SCB) followed by Monascus purpureus TISTR 3003 cultivation for lovastatin production under solid-state fermentation (SSF). The optimization results showed that the lovastatin production was 2347.10 +/- 17.19 mu g/g under the optimum conditions, which is 2.4 times higher than that under untreated conditions. Scanning electron microscopy analysis revealed changes in the surface structure of the treated SCB.
Article
Engineering, Multidisciplinary
P. Jagadesh, A. Ramachandramurthy, R. Murugesan
Summary: The particle size, distribution, and microstructure of cement have a significant impact on the mechanical and durability properties of mortar and concrete. The mechanical properties and microstructure of Original Sugar Cane Bagasse Ash (OSCBA) can be improved after treatment. Parameters such as grinding conditions and burning process influence the morphological characteristics. Blending treated and untreated bagasse ash with cement can significantly improve the performance of the blended cement.
SADHANA-ACADEMY PROCEEDINGS IN ENGINEERING SCIENCES
(2022)
Article
Construction & Building Technology
Ping Huang, Bocong Huang, Jiajia Li, Nengsen Wu, Qing Xu
Summary: Ultra-high-performance concrete (UHPC) is a research focus in cementitious materials due to its excellent mechanical properties and durability. However, high production cost limits its development. Sugar cane bagasse ash (SCBA), with pozzolanic characteristics, has been studied as an alternative cementitious material. This study used SCBA as an active filler to replace quartz powder (QP) in UHPC and found that it improved the strength through pozzolanic reaction and internal curing, reducing production cost and environmental impact.
JOURNAL OF BUILDING ENGINEERING
(2023)
Article
Construction & Building Technology
Veronica Torres de Sande, Monower Sadique, Paloma Pineda, Ana Bras, William Atherton, Mike Riley
Summary: This research investigates the use of poor reactive agro-industrial ashes as sand replacement in cement-based materials, aiming to achieve sustainable use and waste reduction. The results suggest that utilizing agro-industrial ashes as substitutes for natural aggregates can potentially improve compressive strength and durability of bio-concretes.
JOURNAL OF BUILDING ENGINEERING
(2021)
Article
Environmental Sciences
Ye Xiao, Vicente Montes, Josephine M. Hill
Summary: A new activation method was developed in this study to retain sulphur in high sulphur content petcoke and prepare transition metal sulphide catalysts simultaneously. The method effectively addressed the issue of handling carbonaceous waste containing sulphur and converting it into useful metal sulphide catalysts.
Article
Agronomy
Chandan Kumar Gupta, A. K. Sachan, Rakesh Kumar
Summary: This study investigated the microstructural characteristics of sugar cane bagasse ash (SCBA) and the feasibility of replacing cement with SCBA in cement mortar. The findings suggest that replacing cement with SCBA above 10% leads to dry mix and incomplete hydration process, resulting in decreased strength. Consistency of cement increases with higher percentages of SCBA, while compressive strength peaks around 10%, showing better results than samples with constant consistency.
Article
Energy & Fuels
Hao Song, Haiping Yang, Chuang Zhao, Junhao Hu, Jun Zou, Peng Wu, Siqin Li, Hanping Chen
Summary: This study investigates the co-gasification and catalytic co-gasification of petroleum coke and coal at high temperatures. It compares the structural characteristics of high temperature petroleum coke and bituminous coal pyrolysis char, explores the effects of blending ratio on gasification reactivity and synergy, and studies the impact of catalyst on co-gasification. The results show that the gasification reactivity of the blends increases with the coal blending ratio, and a synergistic effect is observed as the co-gasification proceeds with temperature.
Article
Energy & Fuels
Xianyu Liu, Jiandong Ma, Qi Hong, Shiwei Ma, Huijun Ge, Tao Song
Summary: The study found that potassium can be used as a catalyst to accelerate coke conversion in the chemical looping gasification process, with good catalytic effects. Different potassium introduction modes have different effects on syngas yields and distribution, carbon conversion and potassium evolution. Using potassium to modify coke can achieve higher average carbon conversion rates.
Article
Energy & Fuels
Wei Li, Deepak Pudasainee, Rajender Gupta, Wu Yang, Ben Wang, Lushi Sun
Summary: The research found that controlling the gasification temperature of petroleum coke above 1200 degrees Celsius is beneficial for improving gasification reactivity. Petroleum coke with high ash content promotes the decomposition of functional groups to generate active radicals, thereby increasing active sites.
Article
Construction & Building Technology
Gabriela Pitolli Lyra, Maria Victoria Borrachero, Lourdes Soriano, Jordi Paya, Joao Adriano Rossignolo
Summary: Potassium extraction increases the concentration of silica, leading to enhanced pozzolanic reactivity of the ashes.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Correction
Engineering, Environmental
Jing-yong Liu, Shu-jie Huang, Shui-yu Sun, Xun-an Ning, Rui-zhe He, Xiao-ming Li, Tao Chen, Guang-qian Luo, Wu-ming Xie, Yu-jie Wang, Zhong-xu Zhuo, Jie-wen Fu
Article
Agricultural Engineering
Elbager M. A. Edreis, Xian Li, Guangqian Luo, S. W. Sharshir, Hong Yao
BIORESOURCE TECHNOLOGY
(2018)
Article
Energy & Fuels
Renjie Zou, Liang Cao, Guangqian Luo, Zehua Li, Ruize Sun, Xian Li, Hong Yao
Article
Engineering, Chemical
Long Wu, Wenjie Wan, Zhongsheng Shang, Xinyuan Gao, Noriyuki Kobayashi, Guangqian Luo, Zhanyong Li
SEPARATION AND PURIFICATION TECHNOLOGY
(2018)
Article
Thermodynamics
Shan Tong, Li Xiao, Xian Li, Xianqing Zhu, Huan Liu, Guangqian Luo, Nakorn Worasuwannarak, Somrat Kerdsuwan, Bundit Fungtammasan, Hong Yao
ENERGY CONVERSION AND MANAGEMENT
(2018)
Article
Energy & Fuels
Liangkui Jiang, Zehua Li, Juncheng Ouyang, Yuan Fang, Guangqian Luo, Hong Yao
Article
Engineering, Chemical
Zehua Li, Juncheng Ouyang, Guangqian Luo, Hong Yao
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2019)
Article
Energy & Fuels
Juncheng Ouyang, Dikun Hong, Liangkui Jiang, Zehua Li, Huan Liu, Guangqian Luo, Hong Yao
Article
Energy & Fuels
Zehua Li, Renjie Zou, Dikun Hong, Juncheng Ouyang, Liangkui Jiang, Huan Liu, Guangqian Luo, Hong Yao
Article
Engineering, Environmental
Renjie Zou, Guangqian Luo, Can Fang, Haoyu Zhang, Zehua Li, Hongyun Hu, Xian Li, Hong Yao
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2020)
Article
Engineering, Environmental
Yang Xu, Guangqian Luo, Qingzhu Zhang, Wei Cui, Zehua Li, Shibo Zhang
Summary: Novel waste-derived sorbents synthesized through one-step co-pyrolysis of wood and PVC have shown good stability in Hg and halogens removal, with Fe doping further enhancing the stability. Kinetic analysis revealed different rate-limiting steps before and after Fe doping, and water-washing pretreatment can remove loosely-bonded halogens while retaining essential halogens for Hg removal.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Engineering, Environmental
Xiaoyu Li, Juan Chen, Yi Xiao, Shouyan Chen, Chunmei Lu, Guangqian Luo, Hong Yao
Summary: Combining quantum chemistry, kinetic simulations, and DTF experiments, the research revealed the transformation behavior of chromium under oxy-coal combustion in the presence of steam and HCl. It was found that HCl promoted the oxidation of chromium to hexavalent CrO2Cl2, while the coexistence of HCl and steam divided the transition of chromium into two stages, ultimately leading to the formation of CrO2Cl2 as the predominant species. The introduction of HCl into the combustion atmosphere induced more chromium release, and the presence of steam reinforced the effect of HCl on chromium transformation.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Zehua Li, Renjie Zou, Yang Xu, Liang Cao, Guangqian Luo, Hong Yao
Summary: The study utilized a self-designed micro fluidized bed reactor and an online char particle sampling system to investigate the kinetics of coal char combustion and gasification. It was found that the reactivity of sampled char in oxy-fuel combustion followed a specific trend with sampling time, while the gasification reactivity increased gradually with sampling time.
Article
Energy & Fuels
Zehua Li, Renjie Zou, Yang Xu, Guangqian Luo, Hong Yao
Summary: This study reported a novel microfluidized bed reactor combined with a solid char particle online sampling system to investigate the effect of CO2/H2O on semi-char properties and reactivity. The results showed that the activation energy of the semi-char increases during oxy-steam combustion, and the reactivity of the semi-char is higher than that of the original coal char in the early combustion stage, with H2O having a greater influence on semi-char reactivity compared to CO2.
Article
Thermodynamics
Zehua Li, Renjie Zou, Yang Xu, Yuan Fang, Guangqian Luo, Hong Yao
Summary: In this study, coal chars with different cooling rates were prepared and characterized, showing that carbon structure tends to be graphitized during cooling and in-situ char has the lowest carbon graphitization. The reactivity of chars decreases with cooling rate, with in-situ char having the highest carbon defects and most active surface area.
COMBUSTION AND FLAME
(2022)
Article
Thermodynamics
Pengcheng Zhao, Jingang Wang, Liming Sun, Yun Li, Haiting Xia, Wei He
Summary: The production of green hydrogen through water electrolysis is crucial for renewable energy utilization and decarbonization. This research explores the optimal electrode configuration and system design of compactly-assembled industrial electrolyzer. The findings provide valuable insights for industrial application of water electrolysis equipment.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
V. Baiju, P. Abhishek, S. Harikrishnan
Summary: Thermally driven adsorption desalination systems (ADS) have gained attention as an eco-friendly solution for water scarcity. However, they face challenges related to low water productivity and scalability. To overcome these challenges, integrating ADS with other desalination technologies can create a small-scale hybrid system. This study proposes integrating ADS with a Thermo Electric Dehumidification (TED) unit to enhance its performance.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
C. X. He, Y. H. Liu, X. Y. Huang, S. B. Wan, Q. Chen, J. Sun, T. S. Zhao
Summary: A decentralized centroid multi-path RC network model is constructed to improve the temperature prediction accuracy compared to traditional RC models. By incorporating multiple heat flow paths and decentralizing thermal capacity, a more accurate prediction is achieved.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Chaoying Li, Meng Wang, Nana Li, Di Gu, Chao Yan, Dandan Yuan, Hong Jiang, Baohui Wang, Xirui Wang
Summary: There is an urgent need to shift away from heavy dependence on fossil fuels and embrace renewable energy sources, particularly in the energy-intensive oil refining process. This study presents an innovative concept called the Solar Oil Refinery, which applies solar energy in oil refining. A solar multi-energies-driven hybrid chemical oil refining system that utilizes solar pyrolysis and electrolysis has been developed, significantly improving solar utilization efficiency, cracking rate, and hydrogen yield.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Chao Ma, Guanghui Wang, Dingbiao Wang, Xu Peng, Yushen Yang, Xinxin Liu, Chongrui Yang, Jiaheng Chen
Summary: This study proposes a bio-inspired fish-tail wind rotor to improve the wind power efficiency of the traditional Savonius rotor. Through transient simulations and orthogonal experiments, the key factors affecting the performance are identified. A response surface model is constructed to optimize the power coefficient, resulting in an improvement of 9.4% and 6.6% compared to the Savonius rotor.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Sina Bahmanziari, Abbas-Ali Zamani
Summary: This paper proposes a new framework for improving electrical energy harvesting from piezoelectric smart tiles through a combination of magnetic plucking, mechanical impact, and mechanical vibration force mechanisms. Experimental results demonstrate a significant increase in energy yield and average energy harvesting time compared to other mechanisms.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Nanjiang Dong, Tao Zhang, Rui Wang
Summary: This study establishes a multiobjective mixed-variable configuration optimization model for a comprehensive combined cooling, heating, and power energy system, and proposes an efficient generating operator to optimize this model. The experimental results show that the proposed algorithm performs better than other state-of-the-art algorithms.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Ahmed E. Mansy, Eman A. El Desouky, Tarek H. Taha, M. A. Abu-Saied, Hamada El-Gendi, Ranya A. Amer, Zhen-Yu Tian
Summary: This study aims to convert office paper waste into bioethanol through a sustainable pathway. The results show that physiochemical and enzymatic hydrolysis of the waste can yield a high glucose concentration. The optimal conditions were determined using the Box-Behnken design, and a blended membrane was used for ethanol purification.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Sven Klute, Marcus Budt, Mathias van Beek, Christian Doetsch
Summary: Heat pumps are crucial for decarbonizing heat supply, and steam generating heat pumps have the potential to decarbonize the industrial sector. This paper presents the current state, technical and economic data, and modeling principles of steam generating heat pumps.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Le Zhang, To-Hung Tsui, Yen Wah Tong, Pruk Aggarangsi, Ronghou Liu
Summary: This study investigates the effectiveness of a current-carrying-coil-based magnetic field in promoting anaerobic digestion of chicken manure. The results show that the applied magnetic field increases methane yield, decreases carbon dioxide production, and reduces the concentration of ammonia nitrogen. Microbial community analysis reveals the enrichment of certain methanogenic genera and enhanced metabolic pathways. Pilot-scale experiments confirm the technical effectiveness of the magnetic field assistance in enhancing anaerobic digestion of chicken manure.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Bo Chen, Ruiqing Ma, Yang Zhou, Rui Ma, Wentao Jiang, Fan Yang
Summary: This paper presents an advanced energy management strategy for fuel cell hybrid electric heavy-duty vehicles, focusing on speed planning and energy allocation. By utilizing predictive co-optimization control, this strategy ensures safe inter-vehicle distance and minimizes energy demand. Simulation results demonstrate the effectiveness of the proposed method in reducing fuel cell degradation cost and overall operation cost.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Fabio Fatigati, Roberto Cipollone
Summary: Organic Rankine Cycle-based microcogeneration systems that use solar sources to generate electricity and hot water can help reduce CO2 emissions in residential energy-intensive sectors. The adoption of a recuperative heat exchanger in these systems improves efficiency, reduces thermal power requirements, and saves on electricity costs.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Lipeng He, Renwen Liu, Xuejin Liu, Xiaotian Zheng, Limin Zhang, Jieqiong Lin
Summary: This research proposes a piezoelectric-electromagnetic hybrid energy harvester (PEHEH) for low-frequency wave motion and self-sensing wave environment monitoring. The PEHEH shows promising power output and the ability to self-power and self-sense the wave environment.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Shangling Chu, Yang Liu, Zipeng Xu, Heng Zhang, Haiping Chen, Dan Gao
Summary: This paper studies a distributed energy system integrated with solar and natural gas, analyzes the impact of different parameters on its energy utilization and emissions reduction, and obtains the optimal solution through an optimization algorithm. The results show that compared to traditional separation production systems, this integrated system achieves higher energy utilization and greater reduction in carbon emissions.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Qingpu Li, Yaqi Ding, Guangming Chen, Yongmei Xuan, Neng Gao, Nian Li, Xinyue Hao
Summary: This paper proposes and studies a piston-type thermally-driven pump with a structure similar to a linear compressor, aiming to eliminate the high-quality energy consumption of existing pumps and replace mechanical pumps. The coupling mechanism of working fluid flow and element dimension is analyzed based on force analysis, and experimental data analysis is used to determine the pump operation stroke. Theoretical simulation is conducted to analyze the correlation mechanism of the piston assembly. The research shows that the thermally-driven pump can greatly reduce power consumption and has potential for industrial applications.
ENERGY CONVERSION AND MANAGEMENT
(2024)
