Processes and apparatus for analyzing fluid properties of a stream are described. The processes utilize a simulated moving bed system and a rotary valve. The processes involve sending a portion of the pump-around stream to a side chamber where the moisture content of the adsorbent in the side chamber or one or more fluid properties of the stream or both are measured using an analyzer specific to each fluid property.
- Des Plaines IL, US Gregory A. Ernst - Mount Prospect IL, US R. Jason L. Noe - Houston TX, US
International Classification:
B01D 15/18 C07C 7/00 C07C 15/08
Abstract:
The present invention relates to dual extract flush for feeds for xylene extraction processes. More specifically, the present invention relates to dual extract flush for feeds for simulated moving bed extraction processes. It decouples line flush in and line flush out, providing a means for optimizing each flush independently. This scheme will allow for minimizing each bedline and flushing each according to its own bedline volume, which will minimize any additional non-ideal compositions added to the chambers or downstream fractionation.
Processes For Determining Stream Compositions In Simulated Moving Bed Systems
- Des Plaines IL, US Bruce R. Beadle - Kildeer IL, US Heather A. Fleitz - Chicago IL, US Edwin M. Victor - Arlington Heights IL, US Gregory A. Ernst - Oak Park IL, US
Assignee:
UOP LLC - Des Plaines IL
International Classification:
G01N 21/65
US Classification:
436140
Abstract:
Processes for simulated moving bed systems for separating a preferentially adsorbed component from a feed stream and processes for determining compositions of one or more streams in the system are provided. The process comprises the steps of rotating a rotary valve to a first valve position to direct the feed stream to a first adsorbent sub-bed. A process stream is irradiated with laser light that is directed from a probe of a Raman system positioned for inline sampling of the stream. Scattered light from the irradiated stream is collected with the probe and analyzed to assess concentrations of one or more components in the stream.
Greg Ernst (1975-1979), Winston Sheets (1957-1961), Jan Martin (1965-1969), Lisa Knotts (1974-1978), April Chapman (1993-1997), Debbie Kimble (1970-1974)