基于动态吸附法的反气相色谱测定材料的BET,表面非均质特性和扩散性能

应用领域:原油,汽油/柴油/重油,塑料,纤维,地矿/钢铁/有色金属,原油,汽油/柴油/重油,塑料,纤维,地矿/钢铁/有色金属

检测样品:分子筛

检测项目:扩散特性,表面非均质特性

参考标准:Brandani, F.,Ruthven,D.M.,2005.Adsorption11,31–35. Brandani, S.,Ruthven,D.M.,1996.Adsorption2,133–143.

方案摘要

Adscientist IGC设置允许非常灵活地注入15种以上的分子探针。以无限稀释(IGC-ID)或以饱和表面,随后的解吸附分析的有限浓度(IGC-FC)进行样品的特征分析。

使用IGC-ID,测定了新鲜、使用过、人工老化和再循环催化剂的非极性和极性相互作用。用IGC-FC测定了分子筛对甲醇的吸附行为,包括表面吸附能分布。使用IGC装置,可以通过零长柱(ZLC)轻松量化氧化铝珠中的扩散系数。

A novel IGC setup allows a very flexible injection of 15+ molecular probes at either infinite dilution (IGC-ID) or a saturation of the surface by a finite concentration (IGC-FC) and subsequent desorption analysis.Using IGC-ID, the apolar and polar interactions of fresh, used, artificially aged and recycled catalysts were determined.By IGC-FC the adsorption behaviour of zeolites by methanol was measured including adsorption energy distribution.Diffusion coefficients in alumina beads could easily be quantified by Zero Length Column (ZLC) using the IGC setup.

1634180900105984.png

相关产品
店铺 下载
咨询留言 一键拨号