EXPANSION MANOMETRIC ADSORPTION APPARATUS FOR MEASURING ADSORPTION ISOTHERMS OF NITROGEN FOR DETERMINING STRUCTURAL CHARACTERISTICS OF CATALYSTS AND SORBENTS

摘要

The device consists of adsorbers (1) placed in a Dewar flask (2). The adsorbers (1) are connected through closure elements (4) to constant volume dosers (3), which are connected through transfer closure elements (5) to the central doser (6) equipped with pressure indicators (7), through a saturating valve (8) to a nitrogen pressure pipes (10) and through a relief valve (9) for excess nitrogen in a high-vacuum aggregate (11). The pressure indicator works in a range of 0.001 Pa to 150 KPa.IMAGE