1) Permeation of gas and steam
气体和蒸气渗透
2) vapor permeation
蒸气渗透
1.
Preparation of PVA/PPESK Membrane for Vapor Permeation;
PVA/PPESK蒸气渗透膜的研制
2.
Based on researches of vapor permeation separation of ethanol - water mixtures via modified alumina membranes, this paper optimizes the model equations of capillary condensation mechanism for membrane separation of binary gas mixtures which can calculate the permeability of binary gas mixtures accurately and established the.
本文以改性氧化铝膜对乙醇-水物系的蒸气渗透分离过程为研究对象,优选出了二元气体在毛细管冷凝膜分离过程中的组分渗透系数的计算模型;建立了多孔陶瓷膜的传质模型,对蒸气渗透分离过程的模拟证实了该模型的可靠性。
3.
The applications of pervaporation, vapor permeation, gas separation and faciliated membrane transportation process in petrochemical industry are briefly introduced.
通过几个例子介绍了渗透气化、蒸气渗透、气体分离和促进传递等膜分离技术在石油化工领域中的原料纯化、产品分离及末端处理等环节中的应用。
3) vapour permeability
蒸气渗透性
4) Gas permeability
气体渗透
1.
Study on gas permeability of the unsaturated bentonites;
不饱和膨润土中气体渗透研究
2.
The function of water on α-cellulose membrane was also revealed by comparatively studying the gas permeability of cellulose acetate membrane, benzoylated cellulose membrane and polysulfone membrane in "dry" and "wet" state.
测定了水溶胀下 ,CO2 、H2 、CH4 、N2 、O2 等气体在α 纤维素膜内的气体渗透速率 。
3.
Composite membranes,consisting of zeolite Y and polysulfone polymer,were prepared,and gas permeability through both zeolite Y filled polysulfone and unblended polysulfone membranes were measured.
与此相对应，膜的气体渗透特性也发生突变。
5) gas permeance
气体渗透
1.
The defects and modification of ZSM-5 zeolite membrane, as well as the characterization of ZSM-5 zeolite membranes with XRD、SEM、TEM and single gas permeance measurements are summarized.
本文分析了ZSM-5分子筛膜的主要合成方法和研究现状,总结了ZSM-5分子筛膜的缺陷与修饰方法,指出了ZSM-5分子筛膜的表征手段是以XRD、SEM、TEM和单组分气体渗透等为主,对ZSM-5分子筛膜的应用和前景进行了展望。
6) gas permeation
气体渗透
1.
It is analyzed that the principles of gas permeation through porous membrane and the relationship between the permeability of gas and the structure of hydrophobic porous membrane.
理论分析了疏水性多孔膜气体渗透原理和膜各种结构特征参数的关系,并建立了计算气体渗透通量的模型方程,以及确定多孔膜曲折因子等结构参数的方法。
2.
The gas permeation (GP) experiments were conducted with the pressure difference between the two sides of the membrane ranging from 10 to 100 kPa, and it was found that with the increase of pressure difference, the employed membranes show smaller membrane pore size and larger ε/τδ values.
针对两种聚四氟乙烯膜在膜两侧压差为10~100kPa范围内进行了气体渗透实验,结果表明:实验用膜具有一定的可压缩性,随膜两侧压差的增大,膜孔径r减小,而膜孔隙率与有效厚度的比值ε/τδ是增大的,且其变化幅度随膜厚度的增大而增大。
3.
The new methods were established that structure parameters of asymmetric membranes and composite membranes were determined by measuring gas permeability according to the mathematical models for correlations between the membrane structure parameters and gas permeation.
根据非对称膜及其复合膜与气体渗透之间关系的数学模型，建立了通过测定气体渗透率确定膜结构参数的计算方法，并建立了相应的电算软件。
补充资料：蒸气压渗透计
分子式：
CAS号：
性质：测定数均分子量的一种仪器。利用溶质的浓度与溶液的蒸气压成比例的关系，在两个热敏电阻探头上分别滴上一滴纯溶剂和一滴溶液，并把它置于恒温的溶剂蒸气氛围中，由于溶液的蒸气压低于纯溶剂的蒸气压，引起溶剂分子向溶液探头上渗透，使原先已达热平衡的由热敏电阻所组成的惠斯登电桥产生不平衡的电信号，从信号的大小可推算出溶质的分子量。
CAS号：
性质：测定数均分子量的一种仪器。利用溶质的浓度与溶液的蒸气压成比例的关系，在两个热敏电阻探头上分别滴上一滴纯溶剂和一滴溶液，并把它置于恒温的溶剂蒸气氛围中，由于溶液的蒸气压低于纯溶剂的蒸气压，引起溶剂分子向溶液探头上渗透，使原先已达热平衡的由热敏电阻所组成的惠斯登电桥产生不平衡的电信号，从信号的大小可推算出溶质的分子量。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条