Gas sample conditioning apparatus

Details Gas sample conditioning apparatus Gas sample conditioning apparatus

1979-07-09

1981-04-07

Swisher, S. Clement

Measuring and testing

Measuring vessel

G01N 122

Patent

active

042598672

ABSTRACT:
A gas sample conditioning apparatus is disclosed which is adapted for receiving pyrolysis gases from a hydrocarbon cracking furnace and providing a conditioned gas sample for on-stream process analyzers or the like. The apparatus comprises inlet means for drawing a low velocity flow of the pyrolysis gases from a point downstream of the furnace; a filter reflux and cooling stage overlying and extending upwardly from the inlet means, for accepting the low velocity flow, for filtering and cooling said flow to separate particulate matter and condense undesired hydrocarbon fractions, and for establishing a reflux flow to the inlet to maintain plug-free flow through the stage and to stabilize the temperature gradient therein; a further conditioning stage overlying and extending upwardly from the filter reflux and cooling stage, for accepting the flow proceeding therefrom, the further conditioning stage including a relatively constant temperature section for providing relatively uniform temperature in the flow proceeding from this stage; and outlet means overlying the further conditioning stage for accepting the flow therefrom, and for providing the final output conditioned gas sample.

REFERENCES:
patent: 3675489 (1972-07-01), Garilli

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