Generation of multicomponent gas mixtures in catalytic flow-type units: A novel high-pressure saturator

Ancillary Techniques in Laboratory Units for Testing Solid Catalysts

“…In view of all these obvious or hidden drawbacks of methods I and II, a multicomponent saturator has been developed for the generation of gaseous feed streams in laboratory flow-type units [15,16]. Its salient features (Fig.…”

“…4) are a vertical saturator column packed with an inert solid, typically glass beads, and a moving liquid phase (as opposed to the saturators shown in Fig. The gaseous A + B + C + · · · stream at the top of the column, which has a strictly stationary composition [16], is sent to the catalytic reactor. A pump conveys the liquid B + C + · · · mixture from the storage vessel via a heating line inside the thermostated jacket on to a specially designed tray at the top of the column.…”

“…The multicomponent saturator showed excellent performance, both in a unit for atmospheric pressure [15] and in a high-pressure apparatus [16,17]. Moreover, it can be utilized for generating a stationary stream of one component B in the carrier gas A for virtually infinite times-on-stream by continuously or periodically adding liquid B to the storage vessel.…”

Calibration of Gas Sensors

“…A system in which more than one component can be proportioned uses a steady state flowthrough saturator, conceived by Weitkamp and Dauns [17,18]. With this apparatus the liquid in the saturator is continuously renewed.…”

Modeling and Simulation of the Composition of a Gas Saturated with a Multicomponent Liquid

“…The use of a packed column as a saturation system to feed a constant concentration of a multicomponent liquid has given good results. 3 Despite the intuitive knowledge of how the composition of the components of a liquid mixture will vary when a carrier gas is bubbled through it, a qualitative evaluation describing the behavior for a particular system is not found in the literature. The need for a model that describes the variations in composition in a simple saturation system arose from a new idea being explored for catalyst testing.…”