Apparatus for recycling of protein waste and fuel production
US9404073B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2012 |
| Grant date | Aug 2, 2016 |
| Priority date | — |
| Expiry date | Mar 24, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12P5/023
- WIPO fieldFood chemistry
- WIPO sectorChemistry
Abstract
Example embodiments provide an apparatus that is useful for recycling protein waste and producing fuel from protein waste. Waste is ground by a grinding means and digested by a enzyme digest medium composed of enzymes, preservatives, inedible egg and or a waste fluid that may include other protein sources with or without fat. The ground proteins are digested with the enzyme in recirculated digest tanks. Fat can be collected from the tank by addition of acid and separation of fat from water with a centrifuge. Alternatively the ground protein and enzyme can be fermented and gas collected from the digest tank in a pressure tank with a compressor. The protein solubles are emulsified, separated from water, and extruded before drying. Either fat or gas can be used to fuel a dryer. Example embodiments provide a highly digestable paletable food stuff from protein waste which is usable for pet, livestock, or an aquaculture diet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.