Sorbent containing engineered fuel feed stock
First Claim
1. A method of producing an engineered fuel feed stock comprising at least one fiber component and at least one plastic component, the method comprising:
- a) selecting a plurality of components from a waste stream, the plurality of components including the at least one fiber component and the at least one plastic component, which plurality of components in combination have chemical molecular characteristics comprising;
a carbon content of between 30 wt. % and 80 wt. %,a hydrogen content of between 3 wt. % and 10 wt. %,a volatile matter content of 40 wt. % to 80 wt. %, andan ash content of less than 10 wt. %;
b) combining the selected components of a) and a sorbent to form the engineered fuel feed stock, wherein the engineered fuel feed stock contains biodegradable waste and non-biodegradable wastes.
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Abstract
Disclosed are novel engineered fuel feed stocks, feed stocks produced by the described processes, methods of making the fuel feed stocks, methods of producing energy from the fuel feed stocks. Components derived from processed MSW waste streams can be used to make such feed stocks which are substantially free of glass, metals, grit and noncombustibles and contain a sorbent. These feed stocks are useful for a variety of purposes including as gasification and combustion fuels. In addition, one or more sorbents can be added to the feed stocks in order to reduce the amount of a variety of pollutants present in traditional fuel and feed stocks, including, but not limited, sulfur and chlorine. Further, these feed stocks with added sorbent can mitigate corrosion, improve fuel conversion, extend power generating plant lifetime, reduce ash slagging, and reduced operating temperature.
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Citations
81 Claims
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1. A method of producing an engineered fuel feed stock comprising at least one fiber component and at least one plastic component, the method comprising:
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a) selecting a plurality of components from a waste stream, the plurality of components including the at least one fiber component and the at least one plastic component, which plurality of components in combination have chemical molecular characteristics comprising; a carbon content of between 30 wt. % and 80 wt. %, a hydrogen content of between 3 wt. % and 10 wt. %, a volatile matter content of 40 wt. % to 80 wt. %, and an ash content of less than 10 wt. %; b) combining the selected components of a) and a sorbent to form the engineered fuel feed stock, wherein the engineered fuel feed stock contains biodegradable waste and non-biodegradable wastes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A method of producing an engineered fuel feed stock comprising at least one fiber component and at least one plastic component, the method comprising:
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a) separating a plurality of MSW streams into a plurality of MSW waste components based on chemical molecular characteristics; b) selecting the plurality of the MSW waste components, the plurality of components including the at least one fiber component and the at least one plastic component, which plurality of MSW components in combination have chemical molecular characteristics comprising; a carbon content of between 30 wt. % and 80 wt. %, a hydrogen content of between 3 wt. % and 10 wt. %, an ash content of less than 10 wt. %, and a moisture content of between 10 wt. % and 30 wt. %; c) combining the selected components of step a) and a sorbent to form the engineered fuel feed stock, wherein the engineered fuel feed stock contains biodegradable waste and non-biodegradable wastes. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58)
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59. A method of producing an engineered fuel feed stock comprising at least one fiber component and at least one plastic component, the method comprising:
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a) separating a plurality of MSW streams into MSW components; b) selecting a plurality of MSW components, the plurality of MSW components including the at least one fiber component and the at least one plastic component, which plurality of MSW components in combination have chemical molecular characteristics comprising; a carbon content of between 30 wt. % and 80 wt. %, a hydrogen content of between 3 wt. % and 10 wt. %, a volatile matter content of 40 wt. % to 80 wt. %, an ash content of less than 10 wt. %, and a moisture content of between 10 wt. % and 30 wt. %; c) selecting an amount of sorbent; d) combining the selected components of step b) and the amount of sorbent to form the engineered fuel feed stock, wherein the engineered fuel feed stock contains biodegradable waste and non-biodegradable wastes; and e) densifying the engineered fuel feed stock. - View Dependent Claims (60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81)
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Specification