Purdue Research Foundation

Gerald J Gregori

Donald E Bergstrom

Joseph Paul Robinson

Ernest Rowland Blatchley, Iii

Shiyue Fang

Lian-Shin Lin

Yousheng Guan

Dennis Anthony Lyn

Kathyrn E Ragheb

Chengyue Shen

Zorana Naunovic

A method for photochemical reactor characterization includes an application of using dyed microspheres exposed to UV irradiation under a collimated-beam system. Particle specific fluorescence intensity measurements are conducted using samples form the collimated beam and flow-through reactor results using flow cytometry. A numerical model may be used to simulate the behavior of the reactor system to provide a particle-tracking algorithm to interrogate the flow and intensity field simulations for purposes of developing a particle specific estimate of the dose delivery. A method for measuring UV dose distribution delivery in photochemical reactors is provided that includes introducing microspheres labeled with a photochemically-active compound in a UV reactor. The labeled microspheres are harvested downstream of the irradiated zone of a UV reactor and exposed to UV irradiation under a collimated beam of UV irradiation. The method further includes quantifying a UV dose-response behavior, conducting fluorescence intensity measurement on the labeled microspheres from the UV reactor, and developing an estimate of a dose distribution delivered by a UV reactor based on the numerical deconvolution of the sum of the UV dose response behavior and fluorescent intensity of exposed microspheres.

Dyed microspheres for characterization of photochemical reactor behavior

Growing community of inventors

West Lafayette, IN, United States of America

Gerald J Gregori