Technische Universiteit Delft

Gilbert Technologies B.v.

Caner Umit Yurteri

Johannes Cornelis Maria Marijnissen

Jan Rudolf Van Ommen

Rein Andre Roos

Rein André Roos

Naoko Ellis

A spraying device for producing a spray of particles in a carrier gas at ambient pressure, includes a storage volume for a liquid substance; at least one nozzle having an inlet and an outlet, the nozzle inlet fluidly communicating with the storage volume; a counter electrode; an electric supply coupled between the at least one nozzle and counter electrode for providing a first potential and create a first electric field between the nozzle outlet and the counter electrode. The device further includes at least one discharge electrode coupled to the electric supply for providing a second potential between the discharge electrode and the counter electrode, the polarity of the second potential being opposite to the polarity of the first potential. The at least one nozzle and the at least one discharge electrode are arranged adjacent and parallel to each other and facing the counter electrode from a substantially same direction.

System and method for delivering sprayed particles by electrospraying

The invention is directed to a process and apparatus for preparing coated particles, in particular a process for preparing particles that are coated with small particles using electrospraying. The coated particles produced according to the present invention find use for instance as catalysts or as pharmaceuticals. According to the invention a host particle is contacted in a gas stream where it is allowed to contact with one or more moving tribocharging particles, thus providing a charged host particle, which is subsequently contacted with charged guest particles in an electrospraying step.

Process and apparatus for producing coated particles

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Delft, Netherlands

Caner Umit Yurteri