Resources Chemicals and Materials最新文献_第9页

Investigation into the hydrodynamics of liquid-solid inclined micro-fluidized beds 液固倾斜微流化床流体力学研究

Resources Chemicals and Materials Pub Date : 2022-03-01 DOI: 10.1016/j.recm.2021.12.001

Yi Zhang , Nina Ullah , Richard Law , David Reay , Vladimir Zivkovic

{"title":"Investigation into the hydrodynamics of liquid-solid inclined micro-fluidized beds","authors":"Yi Zhang , Nina Ullah , Richard Law , David Reay , Vladimir Zivkovic","doi":"10.1016/j.recm.2021.12.001","DOIUrl":"10.1016/j.recm.2021.12.001","url":null,"abstract":"<div>The inclined micro-fluidized bed (MFB) can enhance heat and mass transfer rates compared to the vertically aligned counterparts, but the increased significance of surface forces and wall effects may cause poor fluidization performance. In this paper, the effects of column inclination and different particle-to-bed ratios (dP/dB) on the solid hydrodynamics are investigated in an inclined micro-fluidized bed. The results validated the suitability of using the Ergun equation to predict minimum fluidization velocities due to small deviations between 1.01 and 1.81 times the theoretical values, for a particle-to-bed ratio ranging from 0.025 to 0.165 at inclinations between 0° and 10°. Investigation into the effects on bed expansion behavior showed that the bed contracted with an increase in bed inclination. An unexpected observation during the bed expansion was the appearance of a secondary high voidage region and the appearance of strong circulation patterns with an increase in bed inclination. A detailed analysis of this phenomenon suggested the presence of a critical angle at 6° and 10° for the 85 µm particles, 4 × 4 mm bed cross-section and 165 µm particles, 1 × 1 mm bed cross-section, respectively. However, the liquid-solid back-mixing was observed due to the modified particle trajectories resulted in the disappearance of the high voidage region. This paper gives new insights into the micro-fluidization behavior in inclined beds thus contributing to the development of micro-fluidized beds and their future applications.</div>","PeriodicalId":101081,"journal":{"name":"Resources Chemicals and Materials","volume":"1 1","pages":"Pages 8-15"},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772443321000015/pdfft?md5=eabadb0218a12a4ca0895c33e196f698&pid=1-s2.0-S2772443321000015-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73638506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Discrete particle methods for engineering simulation: Reproducing mesoscale structures in multiphase systems 工程模拟的离散粒子方法:多相系统中尺度结构的再现

Resources Chemicals and Materials Pub Date : 2022-03-01 DOI: 10.1016/j.recm.2022.01.002

Ji Xu , Peng Zhao , Yong Zhang , Junwu Wang , Wei Ge

{"title":"Discrete particle methods for engineering simulation: Reproducing mesoscale structures in multiphase systems","authors":"Ji Xu , Peng Zhao , Yong Zhang , Junwu Wang , Wei Ge","doi":"10.1016/j.recm.2022.01.002","DOIUrl":"https://doi.org/10.1016/j.recm.2022.01.002","url":null,"abstract":"<div>Most natural resources are processed as particle-fluid multiphase systems in chemical, mineral and material industries, therefore, discrete particles methods (DPM) are reasonable choices of simulation method for engineering the relevant processes and equipments. However, direct application of these methods is challenged by the complex multiscale behavior of such systems, which leads to enormous computational cost or otherwise qualitatively inaccurate description of the mesoscale structures. The coarse-grained DPM based on the energy-minimization multi-scale (EMMS) model, or EMMS-DPM, was proposed to reduce the computational cost by several orders while maintaining an accurate description of the mesoscale structures, which paves the way for its engineering applications. Further empowered by the high-efficiency multi-scale DEM software DEMms and the corresponding customized heterogeneous supercomputing facilities with graphics processing units (GPUs), it may even approach realtime simulation of industrial reactors. This short review will introduce the principle of DPM, in particular, EMMS-DPM, and the recent developments in modeling, numerical implementation and application of large-scale DPM which aims to reach industrial scale on one hand and resolves mesoscale structures critical to reaction-transport coupling on the other hand. This review finally prospects on the future developments of DPM in this direction.</div>","PeriodicalId":101081,"journal":{"name":"Resources Chemicals and Materials","volume":"1 1","pages":"Pages 69-79"},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772443322000022/pdfft?md5=8a50f350735f7659199fba35a4c34ba5&pid=1-s2.0-S2772443322000022-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"92085435","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

Development of catalysts for direct non-oxidative methane aromatization 甲烷直接非氧化芳构化催化剂的研制

Resources Chemicals and Materials Pub Date : 2022-03-01 DOI: 10.1016/j.recm.2022.01.004

Yuji Ogawa , Yuebing Xu , Zhanguo Zhang , Hongtao Ma , Yo Yamamoto

{"title":"Development of catalysts for direct non-oxidative methane aromatization","authors":"Yuji Ogawa , Yuebing Xu , Zhanguo Zhang , Hongtao Ma , Yo Yamamoto","doi":"10.1016/j.recm.2022.01.004","DOIUrl":"10.1016/j.recm.2022.01.004","url":null,"abstract":"<div>Direct catalytic conversion of methane to benzene at non-oxidative condition is considered as one of key reactions for constitution of sustainable carbon-cycling processes, since either biomethane or CO2-based synthetic methane can serve as its feed source. While this concern may motivate many researchers over the world to make their continuous effort to gain deep insight into the catalytic mechanism of this catalysis system and the essential cause of the catalyst deactivation, successful development of a catalyst with high performance, enhanced coking resistance and long-term operating stability will be the key to its industrial application. Here in this review paper, we demonstrate the high catalytic activity and stability of our two shaped Mo/HZSM-5 catalysts developed respectively for fixed-bed and fluidized-bed operations at severe reaction conditions. Thermodynamically, a possibly high aromatization temperature is required to attain a desired high benzene formation rate, but adopting such a temperature will certainly accelerate coke formation and catalyst deactivation. Therefore, the focus of the catalyst development was laid on finding various effective ways of suppressing coke accumulation and catalyst deactivation at practically required severe reaction conditions, and much effort was made to attain the purpose. As a result, a highly active and selective pelleted Mo/HZSM-5 catalyst has been successfully developed and was stably run in a fixed-bed reactor under cyclic regeneration operation mode over 1000 h. In parallel a binder-free, fluidizable Mo/HZSM-5 catalyst with certain mechanical strength has also been developed and successfully tested in a dual circulating fluidized-bed reactor system to provide a stable benzene yield of about 12% at 1073 K and 3000 ml/g/h space velocity.</div>","PeriodicalId":101081,"journal":{"name":"Resources Chemicals and Materials","volume":"1 1","pages":"Pages 80-92"},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772443322000046/pdfft?md5=b91294d6d413bf1d7288759719506be5&pid=1-s2.0-S2772443322000046-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75020129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Recent advance on cobalt-based oxide catalyst for the catalytic removal of volatile organic compounds: A review 钴基氧化物催化剂催化脱除挥发性有机物的研究进展

Resources Chemicals and Materials Pub Date : 2022-03-01 DOI: 10.1016/j.recm.2021.12.003

Xi Chen , Shinong Yu , Wei Liu , Shuning Zhang , Shuchen Liu , Yang Feng , Xuejun Zhang

{"title":"Recent advance on cobalt-based oxide catalyst for the catalytic removal of volatile organic compounds: A review","authors":"Xi Chen , Shinong Yu , Wei Liu , Shuning Zhang , Shuchen Liu , Yang Feng , Xuejun Zhang","doi":"10.1016/j.recm.2021.12.003","DOIUrl":"10.1016/j.recm.2021.12.003","url":null,"abstract":"<div>As the main contributor to air pollution, lots of volatile organic compounds (VOCs) were emitted into the atmosphere due to the rapid urbanization and industrialization, threatening environmental safety and human health. Catalytic oxidation has been verified as an efficient approach for VOCs elimination from industrial waste gas streams. Owing to the merits of cost-effective and high activity, cobalt-based catalysts have been considered as one of the most promising candidates for VOCs degradation. This review systematically summarized the developments achieved in the design of cobalt-based catalysts for VOCs removal over the past decade. Specifically, the fabrication of single cobalt oxides, cobalt-based binary oxides and cobalt-based composites, as well as the modified cobalt-based oxides by the surface engineering strategies, such as doping technology and acid etching method are coherently reviewed. Subsequently, the corresponding kinetic models and mechanisms are also discussed. Finally, considering the enormous challenges and opportunities in this field, the perspective with respect to future research on cobalt-based catalysts is proposed.</div>","PeriodicalId":101081,"journal":{"name":"Resources Chemicals and Materials","volume":"1 1","pages":"Pages 27-46"},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772443321000039/pdfft?md5=7e4a2fc8368cc2f79bfd695bdacb6255&pid=1-s2.0-S2772443321000039-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80968033","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 9

Novel Green resource material: Eucommia Ulmoides Gum 新型绿色资源材料:杜仲胶

Resources Chemicals and Materials Pub Date : 2022-03-01 DOI: 10.1016/j.recm.2022.01.005

Donghan Li , Chen Yang , Yiqi Huang , Long Li , Wenchi Han , Hailan Kang , Feng Yang , Qinghong Fang

引用次数: 8

Advances in low-temperature extraction of natural resources using liquefied dimethyl ether 液化二甲醚低温提取自然资源的研究进展

Resources Chemicals and Materials Pub Date : 2022-03-01 DOI: 10.1016/j.recm.2022.01.001

Qingxin Zheng , Masaru Watanabe

{"title":"Advances in low-temperature extraction of natural resources using liquefied dimethyl ether","authors":"Qingxin Zheng , Masaru Watanabe","doi":"10.1016/j.recm.2022.01.001","DOIUrl":"https://doi.org/10.1016/j.recm.2022.01.001","url":null,"abstract":"<div>This review summarized the valuable works on the extraction technologies using pure liquefied dimethyl ether (DME) as the organic solvent. DME is a colorless gas with a slight ether-like fragrance at room temperature and pressure. Due to some special properties, such as the strong ability for extracting organic compounds and water, high extraction rate, cheap price, low extraction temperature, and energy consumption, environmental friendliness, safety, and good compressibility, the application of liquefied DME to the extraction process shows many advantages and has strong potential market competitiveness. On the other hand, the drawbacks of liquefied DME extraction technology were also revealed, mainly on fire hazards, solvent loss, and lack of large-scale application. Furthermore, the previous studies on the application of liquefied DME extraction technology were divided into three parts based on the extracts (water, lipid/oil, and specific ingredients) and listed one by one. The research of the liquefied DME extraction process is still in development. In the future, it is expected that this technology can be continuously improved and optimized in both lab and industrial scales, together with the extension of its application range to more various natural resources.</div>","PeriodicalId":101081,"journal":{"name":"Resources Chemicals and Materials","volume":"1 1","pages":"Pages 16-26"},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772443322000010/pdfft?md5=06c069608bbc14dd4ca32a8a57ea9033&pid=1-s2.0-S2772443322000010-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"92085434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Outside Back Cover 外封底

Resources Chemicals and Materials Pub Date : 2022-03-01 DOI: 10.1016/S2772-4433(22)00015-0

引用次数: 0

Plasmonic Ag nanoparticles decorated g-C3N4 for enhanced visible-light driven photocatalytic degradation and H2 production 等离子体银纳米粒子修饰g-C3N4增强可见光驱动光催化降解和氢气生成

Resources Chemicals and Materials Pub Date : 2022-03-01 DOI: 10.1016/j.recm.2021.12.004

Fu Ding , Tao Ming , Hanyan Zhang , Yu Gao , Valerian Dragutan , Yaguang Sun , Ileana Dragutan , Zhenhe Xu

{"title":"Plasmonic Ag nanoparticles decorated g-C3N4 for enhanced visible-light driven photocatalytic degradation and H2 production","authors":"Fu Ding , Tao Ming , Hanyan Zhang , Yu Gao , Valerian Dragutan , Yaguang Sun , Ileana Dragutan , Zhenhe Xu","doi":"10.1016/j.recm.2021.12.004","DOIUrl":"10.1016/j.recm.2021.12.004","url":null,"abstract":"<div>The plasmonic Ag nanoparticles (NPs) loaded g-C3N4 photocatalysts (Ag/C3N4) were successfully prepared via a conventional procedure. The fully characterized Ag/C3N4 photocatalysts exhibited excellent stability and greatly enhanced visible light-driven photocatalytic performance both in the degradation of methyl orange (MO) and H2 evolution from water splitting. The 1.0 wt% Ag/C3N4 allowed the highest reaction rate of 0.0294 min−1 to be obtained in the MO degradation, which is about 2.3 times higher than the reaction rate of g-C3N4 alone of 0.0129 min−1. Furthermore, the optimum H2 evolution and the k value attained 20 µmol and 1.573 h−1, respectively, after 12 h of visible light irradiation. The surface plasmon resonance effect of Ag NPs and the charge transfer between the two components of the photocatalyst, strongly promote generation of photoinduced charge carriers while suppressing their recombination. These factors are held responsible for the enhanced visible light photocatalytic performance of Ag/C3N4. Our methodology will provide guidance for the design and synthesis of plasmon-enhanced visible light photocatalysts derived from Ag NPs and g-C3N4 and their applications in environmental remediation and green energy development.</div>","PeriodicalId":101081,"journal":{"name":"Resources Chemicals and Materials","volume":"1 1","pages":"Pages 1-7"},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772443321000040/pdfft?md5=77c55a72ad698e391536c54301bf3802&pid=1-s2.0-S2772443321000040-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86949922","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 12

The path to carbon neutrality in China: A paradigm shift in fossil resource utilization 中国碳中和之路:化石资源利用模式的转变

Resources Chemicals and Materials Pub Date : 2022-03-01 DOI: 10.1016/j.recm.2022.01.003

Yong Jin , Shanying Hu , Zhenye Zhang , Bing Zhu , Dingrong Bai

引用次数: 19

Review of CO2-kerogen interaction and its effects on enhanced oil recovery and carbon sequestration in shale oil reservoirs co2 -干酪根相互作用及其对页岩油藏提高采收率和固碳的影响

Resources Chemicals and Materials Pub Date : 2022-03-01 DOI: 10.1016/j.recm.2022.01.006

Mingzhe Dong , Houjian Gong , Qian Sang , Xinyi Zhao , Chaofan Zhu

{"title":"Review of CO2-kerogen interaction and its effects on enhanced oil recovery and carbon sequestration in shale oil reservoirs","authors":"Mingzhe Dong , Houjian Gong , Qian Sang , Xinyi Zhao , Chaofan Zhu","doi":"10.1016/j.recm.2022.01.006","DOIUrl":"10.1016/j.recm.2022.01.006","url":null,"abstract":"<div>Shale oil resources have proven to be quickly producible in large quantities and have recently revolutionized the oil and gas industry. The oil content in a shale oil formation includes free oil contained in pores and trapped oil in the organic material called kerogen. The latter can represent a significant portion of the total oil and yet production of shale oil currently targets only the free oil rather than the trapped oil in kerogen. Shale oil reservoirs also have a substantial capacity to store CO2 by dissolving it in kerogen. In this paper, recent progress in the research of CO2-kerogen interaction and its applications in CO2 enhanced oil recovery and carbon sequestration in shale oil reservoirs are reviewed. The relevant topics reviewed for this relatively new area include characterization of organic matter, supercritical CO2 extraction of oil in shale, experimental and simulation study of CO2-hydrocarbons counter-current diffusion in organic matter, recovery of oil in kerogen during CO2 huff ‘n’ puff process, and changes in microstructure of shale caused by CO2-kerogen interaction. The results presented in this paper show that at reservoir conditions, supercritical CO2 can spontaneously replace the hydrocarbons from the organic matter of shale formations. This mass transfer process is the key to releasing organic oil saturation and maximizing the capacity of carbon storage of a shale oil reservoir. It also presents a concern of the structure change of organic materials for long term CO2 sequestration with shale or mudstone as the sealing rocks.</div>","PeriodicalId":101081,"journal":{"name":"Resources Chemicals and Materials","volume":"1 1","pages":"Pages 93-113"},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S277244332200006X/pdfft?md5=6b9e140ce9b7c60715b640ab6e49fc15&pid=1-s2.0-S277244332200006X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73294603","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 9