Preparation of fuel usable in a fossil-fuel-fired system
View Patent ↗A fossil-fuel-fired system, which includes an emissions-control-agent dispenser, a furnace, an emissions monitor and, optionally, a controller, is disclosed. The emissions-control-agent dispenser provides a prescribed amount of organic-emissions-control agent, such as, for example, an opacity-control agent to the fossil-fuel-fired system. The furnace includes an exhaust communicating with the atmosphere. The emissions monitor is capable of measuring at least one property of the flue-gas communicated through the exhaust to the atmosphere. For example, when an organic-emissions-control agent is an opacity-control agent, the emissions monitor has the capability of at least measuring opacity. When included, the controller communicates with at least the emissions-control-agent dispenser and the emissions monitor.
1. A process for preparing a fuel usable in a fossil-fuel-fired system, the process comprising:
(a) processing at least one refined fuel through a pulverizing system to form a combustion-grade fuel; and
(b) communicating at least a particulate superabsorbent polymer having a size less than about 850 μm at a rate of from:
(i) about 0.001 weight % to about 5 weight % of the fuel or
(ii) about 0.02 pound/ton of fuel to about 100 pounds/ton of the fuel to any one of:
(α) the at least one refined fuel,
(β) the combustion-grade fuel, or
(γ) the at least one refined fuel and the combustion-grade fuel.
2. The process according to claim 1 , further comprising blending any one of different grades of fuel, different sizes of fuel, different types of fuel, or combinations thereof.
3. The process according to claim 1 , further comprising processing a raw fuel to form a refined fuel.
4. The process according to claim 3 , wherein processing the raw fuel into the refined fuel comprises serially processing a plurality of raw fuels into a plurality of refined fuels.
5. The process according to claim 1 , wherein processing the refined fuel to form the combustion-grade fuel comprises processing a refined coal to form a combustion-grade coal in air.
6. The process according to claim 3 , wherein communicating at least a particulate superabsorbent polymer comprises communicating to any one of:
(δ) the at least one raw fuel,
(α) the at least one refined fuel,
(β) the combustion-grade fuel,
(γ) the at least one refined fuel and the combustion-grade fuel,
(ε) the at least one raw fuel and combustion-grade fuel,
(ζ) the at least one raw fuel and at least one refined fuel, or
(η) the at least one raw fuel, the at least one refined fuel, and the combustion-grade fuel.
7. The process according to claim 1 , wherein the particulate superabsorbent polymer is adapted to control any one of (i) emissions, (ii) opacity, or (iii) emissions and opacity.
8. The process according to claim 1 , wherein the particulate superabsorbent polymer is adapted to effect an opacity of the flue-gas communicated through the exhaust in the fossil-fuel-fired system to the atmosphere resulting in substantially less than or substantially equal to about 40 .