Mitigation of harmful combustion emissions using sorbent containing engineered fuel feed stocks
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C10L-005/00
C10L-005/48
C10L-005/40
C10L-005/46
C10L-009/10
C10L-010/02
C10L-005/04
C10L-010/04
C10L-009/12
C10L-010/00
C10L-005/36
출원번호
US-0271529
(2016-09-21)
등록번호
US-10174268
(2019-01-08)
발명자
/ 주소
Bai, Dingrong
Calabrese, Paula
출원인 / 주소
Accordant Energy, LLC
대리인 / 주소
Cooley LLP
인용정보
피인용 횟수 :
0인용 특허 :
118
초록▼
The invention relates to the use of engineered fuel feedstocks to control the emission of sulfur-based, chlorine-based, nitrogen-based, or mercury-based pollutants, such as SO2, SO3, H2SO4, NO, NO2, HCl, and Hg that are generated during the combustion of fossil fuels, such as coal. Disclosed are nov
The invention relates to the use of engineered fuel feedstocks to control the emission of sulfur-based, chlorine-based, nitrogen-based, or mercury-based pollutants, such as SO2, SO3, H2SO4, NO, NO2, HCl, and Hg that are generated during the combustion of fossil fuels, such as coal. Disclosed are novel engineered fuel feedstocks, feedstocks produced by the described processes, methods of making the fuel feedstocks, methods of producing energy from the fuel feedstocks, and methods of generating electricity from the fuel feedstocks.
대표청구항▼
1. A method of making an engineered fuel feedstock, comprising: processing a plastic and a sorbent to form a plastic-sorbent composition;processing the plastic-sorbent composition with a fiber to form a fiber-plastic-sorbent-composition; andprocessing the fiber-plastic-sorbent-composition to form th
1. A method of making an engineered fuel feedstock, comprising: processing a plastic and a sorbent to form a plastic-sorbent composition;processing the plastic-sorbent composition with a fiber to form a fiber-plastic-sorbent-composition; andprocessing the fiber-plastic-sorbent-composition to form the engineered fuel feedstock, wherein the sorbent comprises a sodium-based sorbent and a calcium-based sorbent. 2. The method of claim 1, wherein the sorbent further comprises a sorbent for mercury reduction. 3. The method of claim 1, wherein the sodium-based sorbent and the calcium-based sorbent are in an amount that is stoichiometrically about 10% to about 500% greater than the amount of a sulfur or a chlorine derived pollutant to be removed. 4. The method of claim 1, wherein the engineered fuel feedstock comprises about 10% (w/w) to about 30% (w/w) plastic and about 70% (w/w) to about 90% (w/w) fiber. 5. The method of claim 1, wherein the plastic is a mixed plastic, and the engineered fuel feedstock comprises about 50% (w/w) to about 95% (w/w) fiber and about 5% (w/w) to about 50% (w/w) mixed plastic. 6. The method of claim 1, wherein the engineered fuel feedstock comprises about 30% (w/w) to about 71% (w/w) fiber, about 6% (w/w) to about 38% (w/w) plastic, and about 23% (w/w) to about 40% (w/w) sorbent. 7. The method of claim 1, wherein the engineered fuel feedstock has an HHV of about 5,000 BTU/lb to about 14,500 BTU/lb. 8. The method of claim 1, wherein the engineered fuel feedstock has an ash content of about 13% (w/w) to about 33% (w/w). 9. A method of making an engineered fuel feedstock, comprising: processing at least about 50% (w/w) of a plastic and a sorbent to form a plastic-sorbent composition, the sorbent comprising a sodium-based sorbent and a calcium-based sorbent;processing the plastic-sorbent composition with a fiber and remaining plastic to form a fiber-plastic-sorbent-composition; andprocessing the fiber-plastic-sorbent-composition to form the engineered fuel feedstock. 10. The method of claim 9, wherein the sodium-based sorbent is selected from the group consisting of trisodium hydrogendicarbonate dihydrate (Trona), sodium sesquicarbonate, sodium bicarbonate, sodium carbonate, and combinations thereof. 11. The method of claim 10, wherein the sodium-based sorbent is sodium bicarbonate. 12. The method of claim 9, wherein the calcium-based sorbent is selected from the group consisting of calcium carbonate, calcium oxide, calcium hydroxide, calcium magnesium acetate (CaMg2(CH3COO)6), calcium bromide, dolomite (CaCO3.MgO), and combinations thereof. 13. The method of claim 12, wherein the calcium-based sorbent is calcium hydroxide. 14. The method of claim 9, further comprising a sorbent for mercury reduction. 15. The method of claim 14, where the mercury based sorbent comprises about 0.05% (w/w) to about 0.15% (w/w) of the engineered fuel feedstock. 16. The method of claim 15, wherein the sorbent for mercury reduction is calcium bromide. 17. The method of claim 9, further comprising a sorbent for NOx reduction. 18. The method of claim 17, wherein the sorbent for NOx reduction is urea. 19. The method of claim 18, wherein the urea comprises about 1% (w/w) to about 3% (w/w) of the engineered fuel feedstock. 20. A method of making an engineered fuel feedstock, comprising: processing a plastic and a sorbent to form a plastic-sorbent composition, the sorbent comprising a sodium-based sorbent, a calcium-based sorbent, and a sorbent for mercury reduction;processing the plastic-sorbent composition with a fiber to form a fiber-plastic-sorbent -composition; andprocessing the fiber-plastic-sorbent-composition to form the engineered fuel feedstock, wherein the engineered fuel feedstock comprises about 30% (w/w) to about 71% (w/w) fiber, about 6% (w/w) to about 38% (w/w) plastic, and about 23% (w/w) to about 40% (w/w) sorbent.
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