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Research Progress and Commercial Applications of Fluid Catalytic Cracking (FCC) Technology
Published 2025-04-01“…As the core of heavy oil upgrading, fluid catalytic cracking(FCC) units have long been the main pillar of economic benefits for petrochemical enterprises in China.This paper reviews the development history of domestic FCC technology and summarizes the current status of FCC technology from three perspectives based on target products:Oil production technology,light olefin maximization technology,and product structure adjustment technology.It emphasizes summarizing the design concepts,main characteristics and commercial application of different FCC technologies,with a particular focus on comparing the differences in reactor types and catalyst.Additionally,research efforts aimed at improving oil quality to meet market demands,enhancing the yields of low⁃carbon olefins,BTX(benzene,toluene,xylene),and other basic chemical raw materials,as well as optimizing their selectivities,are discussed,providing viable technical solutions for high⁃quality enterprise development.Future research priorities for FCC technology include feedstock heavy and diversified processing,product quality improvement,flexible product structure adjustment,and cleaner production processes.…”
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Mechanical and thermal properties of structural lightweight bamboo fiber-reinforced insulating mortar
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Treatment of mine water containing ammonia nitrogen by sodium hexametaphosphate modified zeolite
Published 2024-12-01“…The adsorption of NH4+—N by SHMP−NZ was optimal under weakly acidic or neutral conditions. …”
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Detour-Straddle 3D-like path planning of unmanned mining truck in open pit mines based on optimized ant colony algorithm
Published 2025-06-01“…In order to solve the problem of low driving efficiency and poor path quality caused by excessive detour during path planning, a “3D-like” path planning method based on optimized ant colony algorithm was proposed, and its effectiveness was verified by simulation and experiment. …”
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Effect of Male Partner‐Targeted Breastfeeding Education and Support Interventions on Optimal Breastfeeding Practices in Central Ethiopia: A Cluster Randomized Controlled Trial
Published 2025-04-01“…Breastfeeding education and support interventions targeting male partners in low‐resource settings improve optimal breastfeeding practices, highlighting the need to give due emphasis to integrating breastfeeding promotion and counselling for male partners into existing maternal and child health services. …”
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Investigation of Channel Mobility Enhancement Techniques Using Si/SiGe/GeSn Materials in Orthogonally Oriented Selective Buried Triple Gate Vertical Power MOSFET: Design and Perfor...
Published 2025-04-01“…The results show that our optimized triple-gate device achieves an ultra-low specific ON-resistance of 0.31 mΩ·cm², improving Balliga’s FOM1 by 411.61% and FOM2 by 98.704%. …”
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Nitrogen Fertilizer Application and Optimized Planting Density Enhance Rice Yield by Improving the Panicle Type Index and Increasing the Filling Rate of Inferior Grains
Published 2025-05-01“…In summary, increasing PTI can be achieved by optimizing the distribution of secondary branch grains along the panicle axis, decreasing the number of grains on the lower secondary branches, mitigating the competition for filling materials among inferior grains, improving grain-filling capacity and, ultimately, increasing rice yield.…”
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COMPARATIVE ANALYSIS OF QUALITY OF LIFE AFTER THORACIC ENDOVASCULAR AORTIC REPAIR AND OPTIMAL MEDICAL THERAPY IN PATIENTS WITH UNCOMPLICATED TYPE B AORTIC DISSECTION
Published 2025-04-01“…To analyze patient quality of life and compare outcomes between patients treated with TEVAR in combination with optimal medical therapy versus optimal medical therapy alone. …”
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Structural Analysis and Redrawing of a Sailing Catamaran with a Numerical and Experimental Approach
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Sustainable production of bacterial nanocellulose from date fruit waste using Bacillus haynesii for waste valorisation and crystal violet dye removal
Published 2025-07-01“…Abstract Growing concerns about pollution caused by industrial and agricultural wastes have increased interest in converting waste materials into useful products. Bacterial nanocellulose has garnered global interest due to its environmentally friendly production, excellent mechanical properties, and biocompatibility, making it a promising material for various industries. …”
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Research on the Process of Ni60 Laser Cladding for Surface Strengthening of Nonmagnetic Drilling Tools
Published 2025-07-01“…Taking microhardness, dilution rate, and forming coefficient as quality evaluation indicators, with high hardness, low dilution rate, and high forming coefficient considered optimal, the comprehensive weighted scores of the selected eight sets of single-layer single-pass cladding layers were calculated. …”
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Influence of coal macerals on carbonization process and sodium storage behavior
Published 2025-04-01“…Coal has the advantages of low cost and rich aromatic structure, which makes it a high-quality precursor for the preparation of hard carbon anode materials for sodium-ion batteries. …”
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