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ASTM D3908-99
Standard Test Method for Hydrogen Chemisorption on Supported Platinum on Alumina Catalysts and Catalyst Carriers By Volumetric Vacuum Method
5 стр.
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Разработчик:
Зарубежные/ASTM
ICS:
71.040.30 Chemical. Including reference materials / Химические реактивы. Включая эталонные материалы
Сборник (ASTM):
05.06 Gaseous Fuels; Coal and Coke; Catalysts; Bioenergy and Industrial Chemicals from Biomass / Газовое топливо; Уголь и кокс; Катализаторы; Биоэнергетика и промышленные химикаты из биомассы
Тематика:
Catalysts
Описание
Область применения

1.1 This test method covers the determination of the chemisorption of hydrogen at 298 K (25°C) on supported platinum catalysts that have been reduced in flowing hydrogen at 723 K (450°C). It incorporates a static volumetric vacuum technique at constant volume.

1.2 The test method is intended for use on unused supported platinum on alumina catalysts of loadings greater than 0.3 weight %. Data on other supports and lower platinum loadings were not tested.

1.3 This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Ключевые слова:
Catalysts; Chemisorption; Hydrogen content-petroleum products; Vacuum testing-petroleum products; hydrogen chemisorption (at 298 K (25°C)) on supported platinum on; alumina catalysts, by volumetric vacuum method, test