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Molecular simulation and optimization on the microporous structure in carbon molecular sieve membrane for CO2/CH4 separation
Carbon molecular sieve membrane Gas separation Molecular simulation Pore size Structure optimization
2023/6/19
Zigzag-type pore model with a modified structure was proposed to evaluate the effect of micropore structure on the gas separation performance of carbon molecular sieve membranes (CMSM). Molecular simu...
Highly selective production of renewable p-xylene from bio-based2,5-dimethylfuran and ethylene over Al-modified H-Beta zeolites
p-xylene ethylene Al-modified H-Beta zeolites
2023/6/19
Highly selective synthesis of renewable p-xylene (PX) from bio-based 2,5-dimethylfuran (DMF) and ethylene was successfully realized on H-Beta zeolite catalysts with further Al-modifications. The influ...
Post-modification of desilicated MFI zeolites by phosphorous promoter
Desilicated zeolites Acidity tailoring Phosphorous modification Glycerol dehydration
2023/6/19
Developments in microporous zeolites-base catalysts have evidenced the necessity of acidity tailoring in order to meet the exact requirements of specific reactions, which can be achieved by the post-m...
Fuzzy comprehensive assessment of running condition for a large-scale centrifugal compressor set
Compressor Condition assessment Mathematical modeling Maximal information coefficient Dynamic deterioration degree Prediction
2023/6/19
A fuzzy comprehensive assessment method of running condition was constructed and applied to a large-scale centrifugal compressor set in a petrochemical corporation aiming at the monitoring and early w...
Low-cost electrochemical filtration carbon membrane prepared from coal via self-bonding
Electrochemical filtration carbon membrane Caking coal Self-bonding Organic pollutants Oxidation mechanism
2023/6/19
Electrochemical filtration membranes are highly effective for wastewater treatment. However, their relatively high production cost may limit their large-scale production and industrial application. In...
Pyrolysis behaviors of coal-related model compounds catalyzed by pyrite
Pyrite Catalytic pyrolysis Coal-related model compounds Tetrahydronaphthalene
2023/6/19
The pyrolysis behaviors of coal-related model compounds (bibenzyl and benzyloxybenzene) were investigated on a fixed-bed reactor catalyzed by pyrite (main component is FeS2). The pyrolysis products we...
草酸溶液处理对SAPO-34分子筛物性和催化性能的影响
SAPO-34 分子筛 草酸溶液 MTO反应
2023/6/19
用XRD、SEM、N2物理吸附、XRF、ICP-AES以及NH3-TPD、FT-IR、固体NMR和固定床甲醇制烯烃技术(MTO)反应评价等表征手段,研究了草酸溶液处理对SAPO-34分子筛的改性作用.结果表明,用草酸溶液对SAPO-34分子筛进行后处理可以通过刻蚀骨架在晶体中产生大孔,调变孔道结构,改善微孔扩散性能;选择性地降低分子筛的骨架硅含量,从而降低分子筛的酸强度和酸中心密度.将改性前后的分...
Desulfurization of 2-phenylcyclohexanethiol over transition-metal phosphides
2-Phenylcyclohexanethiol Cycloalkyl C-S bond Desulfurization Ni2P MoP WP Transition-metal phosphosulfide Piperidine
2023/6/19
The desulfurization of 2-phenylcyclohexanethiol (2-PCHT) was studied over Ni2P, MoP, and WP under 4.0 MPa H-2 or Ar at 240 degrees C. The hydrodesulfurization of 2-PCHT proceeded through three paralle...
KOH改性活性炭及其对微量乙烷的吸附性能
活性炭 KOH改性 乙烷 穿透吸附量
2023/6/19
采用KOH改性椰壳活性炭(AC)作为吸附剂,调变KOH和AC的质量比(KOH/AC,以下简称碱碳比)和活化温度制备一系列改性吸附剂,通过动态吸附法评价其脱除微量乙烷的性能,并与AC进行对比研究.评价结果表明,最佳制备条件为:KOH和吸附剂的最佳碱碳比为0.5,最佳活化温度为800℃.在该条件下制备的KOH改性AC吸附剂的乙烷穿透吸附量达到482.1 μg/g,高于AC的169.6 μg/g.表征结...
女性体内塑化剂含量是男性的近6倍，背后有何原因？
塑化剂 有机化合物 化妆品 医疗用品
2023/6/2
塑料中的 “塑化剂”已污染空气、水、食品等环境，并由此暴露于人群而对健康产生一定的影响。厉曙光介绍了食品中“塑化剂”的污染情况，细胞和动物的毒理学实验，对相关人群的暴露现状以及相关的防制建议等，将他对“塑化剂”24年的研究结果作了总结汇报。
本会的中文名称是：中国造纸学会，英文名称为：China Technical Association of the Paper Industry，缩写：CTAPI。本会是由制浆造纸科学技术工作者及相关单位自愿结成的全国性、学术性、非营利性社会组织，是党和政府联系制浆造纸科技工作者的桥梁和纽带，是推动我国制浆造纸科学技术事业发展的重要力量。