Spent Coffee Grounds as a Lubricant in Pelleting of Wood
OwnerGregory Campbell, Connor Gingrich +2inventors
InventorsGregory Campbell, Connor Gingrich, Peter King, Jason Litman
Life of this patent
Estimating the term…
Abstract
Pellets and a process for producing pellets are disclosed. The process includes recovering spent coffee grounds from a coffee production facility. The coffee grounds are then subject to a drying process to remove moisture from the coffee grounds to form dried coffee grounds. A mixture of about 0.5-5% dried coffee grounds and wood material is then formed. The mixture is then compressed in a pellet mill to form wood pellets including about 0.5-5% coffee grounds. The coffee grounds in the wood material acts as a lubricant for the pelleting machinery and eliminate the need for other lubricants in the process.
Claims18
A process for producing pellets using coffee grounds as a lubricant, comprising:
- providing coffee grounds having an initial moisture content;
- drying the coffee grounds to a second moisture content of 3-15%, by weight;
- forming a mixture of about 0.5-5%, by weight, dried coffee grounds and about 95-99%, by weight wood material, said mixture having a third moisture content;
- compressing the mixture in a pellet mill to form pellets including wood material and about 0.5-5%, by weight, coffee grounds, wherein the coffee grounds act as a sole lubricant in the process for producing pellets.
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12-20. (canceled)
A process for producing pellets using coffee grounds as a lubricant, comprising:
- providing coffee grounds having a moisture content of about 3-10%, by weight;
- forming a mixture of about 0.5-5%, by weight, coffee grounds and about 95-99%, by weight of a wood material, said mixture having a moisture content of about 8% to 14%, by weight;
- compressing the mixture in a pellet mill to form pellets including wood material and about 0.5-5%, by weight, coffee grounds, wherein the coffee grounds act as a sole lubricant in the process for producing pellets.
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25-26. (canceled)
Dependencies are inferred from the claim text.