杂多酸（盐）催化合成邻苯二甲酸二辛酯

制备了磷钨酸（盐）的系列催化剂，研究了低温高相、非均相和负载型杂多酸催化剂对合成ＤＯＰ反应的活性和选择性，找到了反应的最佳条件和催化剂的最佳用量，讨论了影响反应的诸因素，发现磷钨酸（盐）对合成ＤＯＰ有较好的催化活性。     

非酸催化合成新型增塑剂DOA

采用钛酸四异丙酯作催化剂合成己二酸二异辛酯（ＤＯＡ）。研究了反应物料配比、酯化反应温度、催化剂用量、中和条件对酯化反应的影响。确定了最佳工艺条件。     

固体超强酸TiO_2/SO_4~(2-)催化合成富马酸二甲酯

研究了以ＴｉＯ２／ＳＯ２－４固体超强酸催化富马酸与甲醇合成富马酸二甲酯（ＤＭＦ）的反应,探讨了催化剂制备条件,原料配比,反应时间,催化剂用量等工艺参数对ＤＭＦ收率的影响。在适宜的工艺条件下ＤＭＦ收率达到９０％,催化剂的重复使用实验表明ＴｉＯ２／ＳＯ２－４是ＤＭＦ合成的一个较适宜的催化剂     

双环戊二烯酚型树脂的合成及其结构表征

在８０￣１４０℃下ＤＣＰＤ与苯酚（或烷基酚）经催化反应合成ＤＣＰＤ酚型树脂。研究了反应温度，反应时间，催化剂用量、ＤＣＰＤ与酚的配比等条件对合成ＤＣＰＤ酚树脂的影响。经红外光谱及核磁共振光谱表征了ＤＣＰＤ酚树脂的化学结构。     

窄分布吐温—80的合成研究

通过对几种碱金属、碱土金属盐催化剂的考察,研究了斯本－８０的乙氧基化反应,筛选出ＤＦ－１型新型催化剂。以该催化剂为重点,对其催化活性、反应影响因素等作了深入的考察。ＤＦ－１型乙氧基化催化剂不但具有催化活性较好,产物分子量分布较窄,色泽较浅等特点,而且在合成工艺上与传统生产工艺相比,具有操作简单的优点,可望在工业生产上获得广泛的应用。     

酯化法合成增塑剂DOTP的研究

用非酸催化剂酯化合成对苯二甲酸二异辛酯（ＤＯＴＰ），研究了反应物料配比、温度、催化剂的选择和用量对酯化反应的影响，确定了最佳工艺条件，分析并比较各制备路线的利弊。     

固载杂多酸PW12／C催化酯化制富马酸二甲酯

以富马酸和甲醇为原料，用尖性炭固载磷钨酸催化合成富马酸二甲酯（ＤＭＦ）。讨论了催化剂用量、醇酸比、反应时间、反应温度等对合成ＤＭＦ的影响。结果表明，该催化剂具有较高的活性、可重复使用，后处理容易，生产成本低且无三废污染。     

乙烯催化二聚合成1－丁烯及其催化剂的研制

介绍了乙烯催化二聚合成１－丁烯的工艺特点、反应机理及影响该反应的因素。成功开发的ＤＣ－０１乙烯二聚催化剂，可代替同类型的进口催化剂ＬＣ２２５３。     

乙烯基酯树脂的合成及性能

以双酚Ａ型环氧树脂与甲基丙烯酸为原料合成了乙烯基酯树脂、论述了反应温度、催化剂用量对反应收率和产物性能的影响,并用ＴＤＩ、ＭＤＩ进行改性,对其性能进行了测试。     

钨硅杂多酸催化合成邻苯二甲酸二壬酯的研究

用钨硅杂多酸作催化剂，对ＤＮＰ的合成方法进行了研究，结果表明，用杂多酸催化酯化反应，具有反应时间短、温度低、活性和选择性高、无环境污染等优点，而且催化剂可以重复使用。     

热孔计法表征水泥基材料孔结构的热力学计算模型

提出了一种采用热孔计法表征水泥基材料的内部微孔结构及其分布的新方法。利用热力学、相变等基本理论,建立了热孔计法表征水泥基材料孔结构的热力学计算模型,并研究了该方法表征水泥基材料的各种孔结构特征参数。结果表明,所建立的热孔计法孔结构热力学计算模型可用于表征水泥基材料中微孔的孔型、孔隙率、孔径分布等的孔结构信息,其结果具有再现性。     

Study on the activity and stability of urease immobilized onto nanoporous alumina membranes

Nanoporous alumina membranes were employed as substrate materials for urease immobilization. Anodic porous alumina was prepared by the two-step anodization of high purity aluminum. By controlling anodization conditions, the nanoporous structure with desired dimension was obtained. Urease immobilization onto nanoporous alumina membranes was performed by four different protocols. Effect of pore diameter, pore length and immobilization methods on the activity and stability of immobilized enzyme was discussed in detail. The results show that the enzymes immobilized onto porous alumina with big pore diameter possess high activity and poor stability as compared to small pore diameter. The effect of pore length is complicated, the activity of enzyme increases with the increasing pore length for big pore size; while for correspondingly small pore size, enzymatic activity slightly depends on pore length. The immobilization methods have a slight effect on enzymatic activity, whereas enzyme immobilization by chitosan coating and reticulation with glutaraldehyde exhibits a good long-term stability as compared to that only via physical adsorption.     

双峰孔分布Al_2O_3载体的研究

采用两种不同孔径分布的拟薄水铝石干胶粉,制备呈明显双峰孔分布的Al2O3载体。考察原料粉体、孔结构调节剂种类和用量以及焙烧温度等对Al2O3载体的孔分布的影响,并采用N2物理吸附法和高压压汞法分析载体孔结构。结果表明,两种干胶粉按质量1∶1混合时,能改变单一粉体的堆积状态,制得载体兼具单一原料制备载体时的孔分布,孔容达到最大,为1.58 cm3·g-1,且孔径分布集中在(10~100)nm和300 nm以上;加入不同孔结构调节剂后,对载体孔径分布调节作用相似,孔径分布更为集中;添加质量分数5%尿素后,(10~100)nm孔径分布达到62.1%;载体的比表面积随尿素含量增加依次降低,适量添加调节剂可制得所需最佳孔径分布;载体在约920℃焙烧时,晶型为γ相和δ相的混合相。     

Synthesis and hierarchical pore structure of biomorphic manganese oxide derived from woods

Biomorphic manganese oxides on two different wood templates (fir and paulownia) were fabricated by infiltration with nitrate and subsequently calcination. X-ray diffraction (XRD) test and microscopy observation (FESEM and TEM) were employed to characterize the phase and structure of biomorphic manganese oxides. The pore structure of the resulting products was studied through mercury intrusion and nitrogen adsorption measurement. Infrared (IR) adsorption properties were investigated by Fourier Transmission Infrared (FTIR). The final oxide products contain hierarchical pore structure from μm to nm scale, and also show unique pore size and distribution with hierarchy on nanoscale derived from the specific wood template, the changeable connectivity of nanoscale pore channel controlled by calcinations temperature. The rise of temperature leads to diminishing of average pore diameter and volume but more uniform pore size distribution and higher degree of pore connectivity. The overall collapse in IR adsorption spectra of biomorphic manganese oxides with the rise of calcination temperature is related to the effect of nanoscale pore structure especially the increasing of pore connectivity.     

A comparison of nitrogen and mercury pore size distributions of silicas of varying pore volume

Although good correlation between the pore size distribution determined by nitrogen desorption isotherm and mercury penetration methods has been reported with low pore volume samples, large discrepancies in pore size distribution and in pore volume were found with high pore volume silicas and were shown to be a function of the pore volume of the silica. The mercury penetration method is believed-to compress these highly porous silicas and therefore reduces the pore volume and forms smaller pores.     

孔隙特性参数对排驱过程影响的实验研究

两相宏观排驱特性是由微观孔隙尺度排驱特性决定的,而微观孔隙尺度多孔介质又处处不均匀、各向不均匀。为了研究孔隙尺度孔隙结构特征对驱替特性的影响,采用了独特设计的微多孔实验段,固定骨架圆柱间距离而变动驱替流体可流通方向,在此基础上研究了孔隙结构特征对驱替特性的影响。对于孔隙特性的表征采取了孔隙方向、关键比率（最大孔隙尺度与最小孔喉尺度比值）、迂曲度和孔隙率四个参数。结果表明：同流量时,微多孔结构的孔隙角越大、迂曲度越小,则对应的非浸润相（十二烷和十六烷）的饱和度（驱替效率）越高;对于不同流量,所有的微多孔结构都按照流量越大,则非浸润相（十二烷和十六烷）饱和度越高的规律变化;关键比率和孔隙率影响必须结合孔隙结构来判断;孔隙角、流量相同时,两相黏度接近的驱替效率更高。     

New insights into the structure of microporous membranes obtained using a new pore size evaluation method

The pore size distribution of the active pores of Millipore MF-VS and MF-VM microfiltration membranes, having nominal pore sizes of 250 Å and 500 Å, respectively, was investigated by a new evaluation method described earlier. The average values of the active pore sizes calculated from the pore size distributions obtained by this method were found to be systematically smaller than the nominal pore sizes indicated by the manufacturer. These differences are discussed in terms of the applicability and range of validity of the gas permeability method which is frequently used for evaluation of the average pore size of microfiltration membranes.     

不同变质程度的煤制活性炭孔隙结构分析

在Autosorb—lC全自动物理化学吸附仪上使用N2和CO2对宁夏太西、山西大同和内蒙古准格尔3种不同变质程度的煤为原料制备的活性炭进行孔隙结构分析,用BET方程处理N2等温吸附数据,计算比表面积;用DFT法处理CO2等温吸附数据,进行微孔分析：用BJH法计算中孔孔径分布。从得出的结果可以看出,随着原料煤变质程度的加深,所制备的活性炭微孔和比表面积增大,超微孔、中孔体积变小,平均孔径变窄。分析结果表明。原料煤的性质是影响活性炭孔隙结构的主要因素。     

南堡1-5区东一段储层微观孔隙结构特征研究

应用物性分析、薄片观察、扫描电镜、常规压汞等方法,对南堡1-5区东一段储层特征及孔隙结构进行了研究。研究结果表明,储层孔隙类型有粒间溶孔、粒内溶孔、晶间微孔、铸模孔,以粒间溶孔为主要类型;喉道类型以点状、缩颈型喉道为主;孔隙结构以中孔-中喉道型为主,其次是中孔-大喉道型、中孔-小喉道型。     

A pore network model for calculating pressure drop in packed beds of arbitrary-shaped particles

A pore network model is built to predict pressure drop in packed beds of arbitrary-shaped particles, using a method that consists of particle packing by the rigid body technique, pore network construction by the maximal sphere algorithm, and numerical calculation of fluid flow. The pore network model is firstly validated by comparing with experiments, Ergun-type equations, and particle-resolved computational fluid dynamics (CFD). The pore network model is as accurate as the particle-resolved CFD, and is remarkably two to three orders of magnitude less computationally intensive. Then, the pore network model is used to calculate the pressure drops in the beds packed with particles of different shapes and sizes, as well as using different flow media. These calculation results prove the versatility of the pore network model. This work provides an accurate yet efficient pore network model for predicting pressure drop, which should be a powerful tool for designing packed beds.