US 11,925,914 B2
Performic acid production systems and methods
Patricia Aubeuf-Prieur, Roquelaure (FR); Iris Porat, Mableton, GA (US); Marco Stammegna, Cleveland, OH (US); and Sampsa Greus, Espoo (FI)
Assigned to KEMIRA OYJ, Helsinki (FI)
Filed by Kemira Oyj, Helsinki (FI)
Filed on Mar. 9, 2021, as Appl. No. 17/196,357.
Claims priority of provisional application 62/987,186, filed on Mar. 9, 2020.
Prior Publication US 2021/0275984 A1, Sep. 9, 2021
Int. Cl. B01J 14/00 (2006.01); B01J 19/00 (2006.01); B01J 19/24 (2006.01); B01J 27/02 (2006.01); C07C 407/00 (2006.01); C07C 409/24 (2006.01)
CPC B01J 19/0033 (2013.01) [B01J 14/00 (2013.01); B01J 19/0013 (2013.01); B01J 19/245 (2013.01); B01J 27/02 (2013.01); C07C 407/00 (2013.01); C07C 409/24 (2013.01); B01J 2219/0004 (2013.01); B01J 2219/00099 (2013.01); B01J 2219/00195 (2013.01); B01J 2219/00229 (2013.01); B01J 2219/00236 (2013.01)] 38 Claims
OG exemplary drawing
 
1. A system for producing performic acid, the system comprising:
two or more reactor units, wherein at least one reactor unit of the two or more reactor units comprises a water bath and one or more coils disposed in the water bath;
two or more servient programmable logic controllers (sPLCs), wherein each of the two or more sPLCs is in communication with a different reactor unit of the two or more reactor units;
a control panel comprising a master programmable logic controller (mPLC) in communication with the two or more sPLCs; and
an automation unit having a user interface, wherein the automation unit is in communication with the mPLC;
wherein (i) the mPLC, (ii) at least one of the two or more sPLCs, and (iii) at least one of the two or more reactor units, are configured to maintain a desired level of performic acid production upon and/or after the occurrence of a disruptive event, and
wherein the two or more sPLCs are configured to detect the disruptive event and communicate a status of the two or more reactor units to the mPLC.