Crystal structure was obtained by XRD. Relative acid strength and acid amount were gotten by NH3-TPD. 用XRD测试了催化剂的晶体结构,用NH3-TPD测试了催化剂的相对酸强度和酸量分布。
This paper ameliorated the pore distribution and improved the thermal stability and acid amount to adapt to the employment of support by Ti-pillared and acid modification. 本文通过钛柱撑及酸改性,增加中孔比率,改善孔径分布,提高热稳定性和酸性,使之更适合作为催化剂载体。
A series of S_2O~(2-)_8/ZrO_2-SiO_2 catalysts with different composition,which have different acid types,acid amount and acid strength at surfaces,were characterized by IR,Py-IR,and XPS. 采用IR、Py-IR、XPS技术考察了不同制备条件下制备的S2O2-8/ZrO2-SiO2类固体超强酸催化剂的表面酸种类、酸量、酸强度.
After treated with citric acid,the acidity amount of CY decreased compared to HY,while the acidity amount of CY-CTS increased compared to HY-CTS,then the hydrodenitrogenation(HDN) performance of NiW/CY-CTS improved remarkablely. 对HY分子筛进行酸预处理后,HY分子筛的酸量下降,但CY-CTS复合载体的酸性增加,表现为催化剂的加氢脱氮性能显著提高。
A new technology used to extract phytic acid from corn plantule cake is introduced.The percent recovery of phytic acid amounts to 97.1% and the content of raw protein reduces to 0.14%. 以玉米胚芽饼为原料采用离子交换法提取植酸的新工艺，植酸收率可达97．6%25以上，粗蛋白质量降至0．14%25。