论文部分内容阅读
作为甲醇制烯烃(MTO)调控产物分布的重要手段,催化剂积炭会改变催化剂的酸密度和平均孔径进而影响反应产物分布。基于某公司1.8×10^(6 )t/a甲醇制烯烃工业化装置,分析了催化剂定碳对反应产物分布的影响。结果表明,催化剂定碳控制在5.75%~7.00%时甲醇完全转化,此阶段随着定碳的增加,反应产物中小分子的CH4、C2H4、C2H2含量增大,大分子的C2H6
其他文献
Structural limiting factors of mixed-valent tin oxides in photoelectrochemical application: A compar
Photoelectrocatalytic (PEC) materials for harvesting solar energy can be discovered from existing photocatalytic semiconductors.Nonetheless,mixed valence tin ox
Amine axial ligand-coordinated cobalt phthalocyanine-based catalyst for flow-type membraneless hydro
In this study,an amine-coordinated cobalt phthalocyanine (CoPc)-based anodic catalyst was fabricated by a facile process,to enhance the performance of hydrogen
采用精馏隔壁塔的三种等价模型,借助Aspen Plus对乙腈-水分离进行了模拟。通过灵敏度分析、TAC分析和能耗分析,研究了不同等价模型在分离共沸体系方面的适用性。结果表明:针对萃取精馏,隔壁塔三种等价模型均可用于模拟分离乙腈-水体系;各模型均体现出节能效果,相较于传统的萃取精馏塔,两塔模型节能12.62%,三塔模型节能22.28%,四塔模型节能14.10%;总费用方面,三塔模型比两塔模型减少11.73%,比四塔减少15.26%。
应用Aspen plus软件对二氯二氢硅反歧化反应精馏工艺进行了模拟,对反应精馏工艺进行了操作参数优化,在最佳条件下以年度总费用为依据对固定床工艺和反应精馏工艺设备投资和能耗进行了分析,进一步在Aspen dynamics软件下模拟了进料流量±5%波动及组成变化的扰动下各运行参数的变化。结果表明,产品中三氯氢硅(TCS)质量分数可达99%,模拟结果与工艺数据良好吻合且误差不超过5%。确定的最佳优化参数中回流比为6,压力140 kPa,STC/DCS的进料物质的量之比为1.04,理论塔板数为39。相比固定床
Highly efficient and stable perovskite solar cells with strong hydrophobic barrier via introducing p
Perovskite solar cells(PSCs)have become the promising next-generation photovoltaic devices due to their excellent photoelectric performances,and the power conversion efficiencies(PCEs)have experienced unprecedented rapid increase in recent years.However,t
Theoretical screening of the transition metal heteronuclear dimer anchored graphdiyne for electrocat
Developing efficient electrocatalysts for nitrogen reduction reaction(NRR)is crucial to replace the both energy-intensive and environment-malignant Haber-Bosch
Na-doping-induced modification of the Cu2ZnSn(S,Se)4/CdS heterojunction towards efficient solar cell
It is very important to understand why a small amount of alkali metal doping in Cu2ZnSn(S,Se)4 (CZTSSe)solar cells can improve the conversion efficiency.In this
Alkali metal ion batteries(AMIBs)are playing an irreplaceable part in the energy revolution,due to their intrinsic advantages of large capacity/power density an
Ultrathin two-dimensional metal-organic framework nanosheets for efficient electrochemical CO2 reduc
Electrochemical CO2 reduction into CO or high-value products is regarded as a feasible pathway for energy conversion, which has attracted universal attention in
The overcharge behaviors of 1000 mAh LiCoO2/graphite pouch cells are systematically investigated through the analysis of morphology,structural and thermal stabi