System and process for recovering products using simulated-moving-bed adsorption
AssigneeUop LLC
InventorJason T. Corradi
Life of this patent
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Abstract
A process according to various approaches includes withdrawing the raffinate stream through one transfer line that contains residual fluid away from the adsorptive separation chamber. The process includes directing an initial portion of the raffinate stream, including at least a portion of the residual fluid, toward a first destination and directing a subsequent portion of the raffinate stream withdrawn through the one transfer line toward a second destination.
Claims20
A process for separating components in a feed stream by simulated countercurrent adsorptive separation comprising:
- introducing a feed stream, comprising at least one preferentially adsorbed component and at least one non-preferentially adsorbed component, and a desorbent stream into two different ports via two different corresponding transfer lines along a multi-bed adsorptive separation chamber having a plurality of beds that are serially connected in fluid communication and comprising a predetermined number of spaced ports with corresponding transfer lines in fluid communication therewith for introducing and removing fluid into and from the adsorptive separation chamber and withdrawing an extract stream and raffinate stream through two different ports of the multi-bed adsorptive separation chamber via two different corresponding transfer lines;
- withdrawing the raffinate stream through one transfer line that contains residual fluid away from the adsorptive separation chamber;
- directing an initial portion of the raffinate stream, including at least a portion of the residual fluid, toward a first destination;
- and
- directing a subsequent portion of the raffinate stream withdrawn through the one transfer line toward a second destination.
A process for the separation of components in a feed stream comprising at least one preferentially adsorbed component and at least one non-preferentially adsorbed component by simulated countercurrent adsorptive separation comprising:
- introducing a feed stream into a port of a multi-bed adsorptive separation chamber comprising a plurality of ports with corresponding transfer lines via one transfer line in fluid communication with the port;
- withdrawing an extract stream from the adsorptive separation chamber through the one transfer line;
- introducing a desorbent stream into the adsorptive separation chamber through the one transfer line to separate at least a portion of the preferentially adsorbed component from adsorbent within the adsorptive separation chamber;
- withdrawing a raffinate stream, including residual fluid remaining in the one transfer line, from the adsorptive separation chamber through the one transfer line;
- directing the raffinate stream, including at least a portion of the residual fluid, withdrawn through the one transfer line to one destination;
- and
- directing the raffinate stream withdrawn through the one transfer line to another destination.
Dependencies are inferred from the claim text.