# US 9,517,281 B2 · Process and radiator device for wort sterilization by radiation for ethanol production

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- Number: US 9,517,281 B2
- Document ID: US9517281B2
- Status: Granted
- Kind: B2
- Application number: 14/633,043
- Filed: 2015-02-26
- Published: 2015-10-29
- Granted: 2016-12-13
- Earliest claimed: 2012-10-23
- Applicants: Marcelo Gianatto Moreira; Airton Deppman; Pedro Carlos Russo Rossi
- Inventors: Marcelo Gianatto Moreira; Airton Deppman; Pedro Carlos Russo Rossi
- Web page: https://patentgrep.com/patent/US9517281B2

## CPC

- A61L 2/10: Ultraviolet [UV] radiation
- A23B 2/503: {with corpuscular or ionising radiation, i.e. X, alpha, beta or omega radiation}
- A61L 2/081: Gamma radiation
- A61L 2/087: Particle radiation, e.g. electron-beam, alpha or beta radiation
- A61L 9/18: Radiation (A61L9/22 takes precedence)
- C12C 11/003: {Fermentation of beerwort}
- A23B 11/1334: {the milk being heated by electrical or mechanical means, e.g. by friction}
- A61L 2/00: Disinfection or sterilisation of materials or objects, in general; Accessories therefor
- A61L 9/03: Apparatus therefor
- A61L 9/20: Ultraviolet radiation
- B63J 1/00: Arrangements of installations for producing fresh water, e.g. by evaporation and condensation of sea water {(treatment of water in general C02F)}
- C02F 1/30: by irradiation
- C02F 1/302: {with microwaves}
- C02F 1/32: with ultraviolet light
- A61L: METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES (preservation of bodies or disinfecting characterised by the agents employed A01N; preserving, e.g. sterilising, food or foodstuffs A23; preparations for medical, dental or toiletry purposes A61K)
- A23B: PRESERVATION OF FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES; CHEMICAL RIPENING OF FRUIT OR VEGETABLES
- C12C: BEER; PREPARATION OF BEER BY FERMENTATION (ageing or ripening by storing C12H1/22; methods for reducing the alcohol content after fermentation C12H3/00; methods for increasing the alcohol content after fermentation C12H6/00; venting devices for casks, barrels or the like C12L9/00); PREPARATION OF MALT FOR MAKING BEER; PREPARATION OF HOPS FOR MAKING BEER
- B63J: AUXILIARIES ON VESSELS
- C02F: TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE (separation in general B01D; special arrangements on waterborne vessels of installations for treating water, waste water or sewage, e.g. for producing fresh water, B63J; adding materials to water to prevent corrosion C23F; treating radioactively-contaminated liquids G21F9/04; regeneration of reactants for recirculation into processes, see the relevant places for the processes)

## Abstract

A method and irradiator apparatus used for wort sterilization by radiation for production of ethanol from sugar cane, comprising a trough-like fluid duct and a radiation source for directing radiation over the flow of a fluid conducted through the duct, and application of radiation to a fluid within an apparatus for sterilization of such fluid.

## Claims

### Claim 1

An apparatus for sterilization of a fluid, comprising:
a fluid duct comprising a first horizontal portion through which fluid flows from a first end to a second end;
an inclined portion located downstream of the first horizontal portion and receiving fluid from the second end of the first horizontal portion, the fluid passing down the inclined portion and exiting at a distal end relative to the first horizontal portion;
a second horizontal portion downstream of the inclined portion and receiving fluid from the distal end; and
a gamma radiation source positioned above the inclined portion of the fluid duct;
wherein horizontal fluid flow through the fluid duct proceeds through the first horizontal portion, the inclined portion, and the second horizontal portion generally in a single horizontal direction defined by flow from the first end to the second end of the first horizontal portion; and
wherein the fluid duct conducts fluid from the first horizontal portion through the inclined portion wherein it may be sterilized by radiation to the second horizontal portion.

### Claim 2

An apparatus for irradiation of a fluid, comprising:
a plurality of fluid ducts; and
a plurality of gamma radiation sources;
wherein the gamma radiation sources direct gamma radiation over at least a portion of at least some of the plurality of fluid ducts;
wherein horizontal fluid flow through the fluid duct proceeds through a first horizontal portion, an inclined portion, and a second horizontal portion generally in a single horizontal direction defined by flow from a first end to a second end of the first horizontal portion; and
wherein at least some of the fluid ducts direct the flow of a fluid through the path of gamma radiation.