Arrangement, equipment and method for testing heterogeneous...

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G01N 31/10 (2006.01) G01N 30/88 (2006.01) G01N 30/10 (2006.01) G01N 30/12 (2006.01) G01N 30/62 (2006.01)

Patent

CA 2331507

This invention relates to an arrangement, equipment and method for testing heterogeneous catalysts for short contact time reactions. It is a novel application of capillary technique where capillary tubing and separation columns are used as on-line sampling probes as well as for separation of compounds. The equipment comprises a furnace which gives a broad and uniform temperature profile, a tube reactor, adapter units, gas and liquid injection valves, a gas chromatograph furnished with suitable detectors, mass-flow and temperature measurement controllers, an injector, a reactor and column head pressure adjusting valve, an on-line sampling application with capillary technique, with splitting of sample with capillary technique, simultaneous detection of pulse mode, hydrogen and compound responses.

Cette invention concentre un système, un équipement et un procédé d'analyse de catalyseurs hétérogènes pour détecter des réactions à temps de contact court. Il s'agit d'une nouvelle application de techniques capillaires, dans laquelle on utilise des capillaires et des colonnes de séparation en tant que sondes d'échantillonnage en ligne, ainsi que pour séparer des composés. Cet équipement comporte un four permettant d'obtenir un profil de température large et uniforme, un réacteur à tube, des unités d'adaptation, des soupapes d'injection de liquide et de gaz, un chromatographe à gaz pourvu de détecteurs adéquats, des contrôleurs de mesure de la température et du débit massique, un injecteur, et une soupape de régulation de la pression de tête de la colonne et du réacteur. Une application d'échantillonnage en ligne utilisant la technique capillaire permet la séparation de l'échantillon, ainsi que la détection simultanée de réponses en mode impulsion, de l'hydrogène et des composés concernés.

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