Reactive chromatography process for equilibrium-limited reactions
AssigneeDow Global Technologies LLC
InventorsTimothy C. Frank, Megan E. Donaldson
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Abstract
The present disclosure provides for a process for an equilibrium limited reaction using reactive chromatography unit (RCU) in which a first organic donor reactant (FODR) and a second organic acceptor reactant (SOAR) react to form a product mixture of a first acceptor product (FAP) and a second donor co-product (SDCP). The equilibrium-limited reaction does not produce water. The RCU has separation media to separate the product mixture into a raffinate and an extract. The FODR is in a stoichiometric deficit relative to the SOAR for the equilibrium limited reaction, so that the SOAR acts as the eluent for both the raffinate and the extract, and so as not to produce an azeotrope of FODR and the SDCP in the extract.
Claims14
A process for an equilibrium-limited reaction of an acylating agent with a hydroxy containing organic compound (HCOC) to form an organic ester and an alcohol co-product (AC) different than the HCOC, where the equilibrium-limited reaction is a reversible reaction having an equilibrium conversion value (Xe) for a predetermined temperature, the process comprising:
- supplying the acylating agent and the HCOC to a reactive chromatography unit (RCU) to create a reaction mixture, where the acylating agent is in a stoichiometric deficit relative to the HCOC for the equilibrium-limited reaction, and where the RCU has a catalyst for the equilibrium-limited reaction and separation media to separate the organic ester from the AC;
- reacting at the predetermined temperature the acylating agent in the stoichiometric deficit relative to the HCOC in the RCU to form a product mixture comprising the organic ester and the AC via the equilibrium limited reaction;
- and
- separating the product mixture with the separation media into a raffinate that includes the organic ester and an extract that contains the AC, where separating the product mixture produces a conversion value for the equilibrium limited reaction that is greater than the equilibrium conversion value for the predetermined temperature.
Dependencies are inferred from the claim text.