Al-free Sn-beta zeolite cat select MPV ketone reductCorma, A
Beta-zeolite modified by phosphorous was used to substitute 5% USY as additive to FCC model catalyst. 以磷改性β沸石替代质量分数5%的USY沸石作为流化催化裂化(FCC)模式催化剂的活性组分,通过实验室轻油微反、固定-流化床装置评价其催化性能。4) modified β-zeolite 改性β沸石催化剂 1. The causes for...
However, the durability of this Na-modified Zeolite Beta still has much room to be improved. In this work, this inferior catalytic durability is overcome by using the low-Al Zeolite Beta with a smaller particle size near 0.5渭m. Consequently, for at least eight cycles, cyclic tests of ...
The aluminosilicate version of SSZ-31 ([Al]-SSZ-31) zeolite was synthesized by a new route including phase-transformation, wherein an alummosilicate analog of beta zeolite ([Al]-BEA) was used as a precursor and 1,1,1,8,8.8-hexaethyl-1,8-diazoniaoctane dihydroxide was used as a struct...
Synthesis and characterization of large beta zeolite crystals using ammonium fluoride The preparation and characteristic properties of beta zeolite (BEA) with a wide range of Si/Al ratio and an influence of NaOH addition on their thermal sta... BW Lu,H Jon,T Kanai,... - 《Journal of Materia...
在甘油与环己酮的缩酮反应中,[B, Al]-EWT 结构分子筛 (U-90-08-10/U-90-08-10-HCl) 的转化率明显高于 EWT 结构分子筛,接近或超过了 Beta 分子筛。本研究采用硼/铝同晶取代方法制备的超大孔分子筛 [B, Al]-EWT 可...
Our previous study found that Beta zeolites with pore size of 6–8 Å exhibited excellent adsorption behavior toward toluene, with dynamic diameter of about 6 Å [5]. High-efficiency adsorption of multi-component VOCs mixtures using a zeolite is important to meet the requirement for the ...
货号:097-04051 包装:200mg iminoctadine Albesilate StandardCAS#:169202-06-6品牌:wako;订货号:097-04051类别:wako农药标准品 Iminoctadine Albesilate Standard 烷苯磺酸盐标准品 品牌:FUJIFILM Wako 发表于2023年9月16日由上海金畔生物科技有限公司
The crystalline Beta product has Si/Al ratios as low as 3.9 (16.4 Al atoms per unit cell), which are comparable to the natural counterpart of zeolite Beta, the mineral Tschernichite, and give the material high hydrophilic properties. The tetrahedral coordination of aluminum in the Al-rich ...
近日,博士研究生王闻年在Journal of Catalysis上发表论文:Mild-acid-assisted thermal or hydrothermal dealumination of zeolite beta, its regulation to Al distribution and catalytic cracking performance to hydrocarbons,DOI:10.1016/j.jcat.2018.03.002。