System and Apparatus for a Laboratory Scale Reactor
First Claim
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1. An apparatus for the preparation of gas mixtures, comprising:
- at least two gas delivery banks, each for delivering at least one of a plurality of gasses, and each comprising;
at least one gas source for receiving at least one input gas;
at least one control valve operable on the at least one input gas;
at least one pressure regulator operable on the at least one input gas;
a plurality of first mass flow controllers operable on the at least one input gas; and
at least one output for outputting a mass-flow controlled, regulated one of the at least one input gas as the delivered at least one of the plurality of gasses;
at least one evaporation block suitable for adding H2O to a mixture of more than one of the delivered at least one of the plurality of gasses received from a respective one of the at least two gas delivery banks;
wherein the ratio of the mixture of the more than one of the delivered at least one of the plurality of gasses is at least partially controlled by respective ones of the plurality of first mass flow controllers of ones of the at least two gas delivery banks;
a heating chamber comprising at least one heating element and a heating controller suitable for heating the mixture to a controlled heating temperature and for imparting a first space velocity to the mixture;
at least one catalyst sample provided substantially in-line following the heating chamber and suitable for interacting with a first portion of the mixture having a second space velocity;
at least one vent suitable for venting, prior to interacting with the catalyst sample, of a second portion of the mixture , thereby imparting the second space velocity to the first portion of the mixture;
at least one second mass flow controller for controlling flow of a mass-flow controlled one of the interacted first portion of the mixture; and
at least one gas analyzer suitable for analyzing the mass-flow controlled one of the interacted first portion of the mixture.
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Abstract
The present disclosure may include a device for testing catalysts, and a method for controlling the flow rate and temperature parameters during the process. The device may separate mass flow control through heating elements from the mass flow through the sample, as well as separate banks for mixing oxidizing elements, carbon dioxide, and diluent gas as well as reducing agents, nitric oxide, and diluent gas. The device disclosed here may also use mass control units of a sufficiently high speed so as to allow the desired testing conditions.
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Citations
17 Claims
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1. An apparatus for the preparation of gas mixtures, comprising:
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at least two gas delivery banks, each for delivering at least one of a plurality of gasses, and each comprising; at least one gas source for receiving at least one input gas; at least one control valve operable on the at least one input gas; at least one pressure regulator operable on the at least one input gas; a plurality of first mass flow controllers operable on the at least one input gas; and at least one output for outputting a mass-flow controlled, regulated one of the at least one input gas as the delivered at least one of the plurality of gasses; at least one evaporation block suitable for adding H2O to a mixture of more than one of the delivered at least one of the plurality of gasses received from a respective one of the at least two gas delivery banks; wherein the ratio of the mixture of the more than one of the delivered at least one of the plurality of gasses is at least partially controlled by respective ones of the plurality of first mass flow controllers of ones of the at least two gas delivery banks; a heating chamber comprising at least one heating element and a heating controller suitable for heating the mixture to a controlled heating temperature and for imparting a first space velocity to the mixture; at least one catalyst sample provided substantially in-line following the heating chamber and suitable for interacting with a first portion of the mixture having a second space velocity; at least one vent suitable for venting, prior to interacting with the catalyst sample, of a second portion of the mixture , thereby imparting the second space velocity to the first portion of the mixture; at least one second mass flow controller for controlling flow of a mass-flow controlled one of the interacted first portion of the mixture; and at least one gas analyzer suitable for analyzing the mass-flow controlled one of the interacted first portion of the mixture. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification