# US 11,299,678 B2 · Efficient procedure and system to process solid organic waste

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- Number: US 11,299,678 B2
- Document ID: US11299678B2
- Status: Granted
- Kind: B2
- Application number: 16/645,160
- Filed: 2018-08-28
- Published: 2021-02-04
- Granted: 2022-04-12
- Earliest claimed: 2017-09-06
- Applicants: Bioforce Tech Corporation
- Inventors: Dario Presezzi; Valentino Villa; Marco Mosciarello; Stefano Pessina; Mattia Bonfanti
- Web page: https://patentgrep.com/patent/US11299678B2

## CPC

- C10B 53/00: Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form (wet carbonising of peat C10F)
- B01D 53/84: Biological processes
- B09B 3/40: involving thermal treatment, e.g. evaporation (processes using mineral binders involving a melting or softening step B09B3/29; involving radiation B09B3/50)
- C10B 27/06: Conduit details, e.g. valves
- C10B 41/00: Safety devices, e.g. signalling or controlling devices for use in the discharge of coke
- C10B 53/02: of cellulose-containing material (production of pyroligneous acid C10C5/00)
- C10B 57/10: Drying
- Y02E 50/10: Biofuels, e.g. bio-diesel
- C10B: DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS (cracking oils C10G; underground gasification of minerals E21B43/295)
- B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28)
- B09B: DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

The techniques introduced here include a system and method for efficiently, and in some embodiments automatically, processing solid organic waste. In both the method and the system the solid organic waste is injected into a rotating, thermally isolable, container with internal sensors that help in keeping humidity and temperature within given parameters, before the resulting dried solid organic waste is sent to a pyrolysis chamber and its exhausts are sent to filter. In some embodiments, inert material in the form of dried solid organic waste is left in the container in order to make the process even more efficient and system and process are made automatic and remotely controllable through the use of software automation and a web of internal and external sensors.

## Claims

### Claim 1

A method to process solid organic waste comprising the steps of:
depositing a predetermined amount of dried solid organic waste into a thermally isolated container;
injecting a predetermined amount of wet solid organic waste into said thermally isolated container;
rotating said thermally isolated container so as to thoroughly mix said predetermined amount of dried solid organic waste with said predetermined amount of wet solid organic waste;
conducting an air flow through said thermally isolated container so as to permit bacteria, present within said mixture of said dried solid organic waste and said wet solid organic waste, to generate heat as said bacteria present within said mixture of said dried solid organic waste and said wet solid organic waste metabolizes and thereby raises temperature levels internally within said thermally isolated container to a temperature level which is between 35° C. and 85° C., and which raises and humidity levels internally within said thermally isolated container to a humidity level which is between 10% and 85%;
providing a plurality of temperature and humidity sensors within said thermally isolated container so as to monitor temperature and humidity conditions inside said thermally isolated container and generate data indicative of said temperature and humidity conditions inside said thermally isolated container;
monitoring said plurality of said temperature and humidity sensors within said thermally isolated container, and automatically rotating said thermally isolated container as well as automatically controlling said air flow into said thermally isolated container, in response to said generated temperature and humidity data, so as to maintain said temperature level within said thermally isolated container between 35° C. and 85° C., and said humidity level within said thermally isolated container between 10% and 85%, in accordance with data provided by said plurality of temperature and humidity sensors so as to eventually result in obtaining dried solid organic waste; and
conveying said resulting dried solid organic waste into a separate chamber where said resulting dried solid organic waste is processed by means of pyrolysis so as to obtain charcoal.

### Claim 2 (depends on 1)

The method as in claim 1, wherein:
exhaust from said thermally isolated container is sent to a biofilter.

### Claim 3 (depends on 1)

The method as in claim 1, wherein:
external air is routed through a heat exchanger so as to lower said temperature level internally within said thermally isolated container.

### Claim 4 (depends on 1)

The method as in claim 1, wherein:
a part of said resulting dried solid organic waste is left in said thermally isolated container, instead of being processed through pyrolysis, so as to act as said dried solid organic waste material for a subsequent processing cycle.

### Claim 5 (depends on 1)

The method as in claim 1, wherein:
said temperature level and said humidity level within said thermally isolated container is remotely regulated.

### Claim 6 (depends on 1)

The method as set forth in claim 1, wherein said pyrolysis further comprises the steps of:
conveying said resulting dried solid organic waste into a pyrolysis hopper;
conveying a predetermined amount of said resulting dried solid organic waste from said pyrolysis hopper into a pyrolysis reactor which is thermally isolated from external ambient conditions;
maintaining said pyrolysis reactor at a temperature level of between 400° C. and 800° C.; and
maintaining said predetermined amount of said resulting dried solid organic waste within said pyrolysis reactor for a time period of between two (2) and thirty (30) minutes.