System for co-firing cleaned coal and beneficiated organic-carbon-containing feedstock in a coal combustion apparatus

A process of co-firing coal and processed biomass for combusting coal in a coal combusting apparatus with less adverse by-products comprising:

• passing un-cleaned coal through a coal cleaning sub-system to form cleaned coal having a sulfur content that is at least 50 wt % less than that of the content of sulfur in an un-cleaned coal;
• and
• making a processed biomass feedstock pellet in a processed biomass system via a processed biomass system process that comprises:
• inputting into the processed biomass a system comprising a first and a second subsystem an unprocessed organic-carbon-containing feedstock that includes free water, intercellular water, intracellular water, intracellular water-soluble salts, and at least some plant cells comprising cell walls that include lignin, hemicellulose, and microfibrils within fibrils;
• passing unprocessed organic-carbon-containing feedstock through the first subsystem, a beneficiation sub-system via a beneficiation sub-system process, to result in processed organic-carbon-containing feedstock with characteristics that include having an energy density of at least 17 MMBTU/ton (20 GJ/MT), a water content of less than 20 wt %, and a water-soluble intracellular salt content that is decreased more than 60 wt % on a dry basis from that of the unprocessed organic-carbon-containing feedstock;
• and
• passing the processed organic-carbon-containing feedstock through the second subsystem, a pelletizing sub-system via a pelletizing sub-system process, to result in pelletized processed biomass pellet feedstock;
• passing the cleaned coal with part of the processed biomass through a blending sub-system via a blending sub-system process to form a processed biomass/cleaned coal blended compact aggregate that comprises the processed biomass/cleaned coal blended compact aggregate and the processed biomass in a wt ratio of between 1 to 9 and 9 to 1;
• providing the processed biomass/cleaned coal blended compact aggregate to a first chamber of the coal combusting apparatus, the first chamber configured to pulverize coal and feed the coal into the coal combusting apparatus in a first concentration weight of feedstock;
• and
• providing part of the processed biomass pellet feedstock to a second chamber of the coal combusting apparatus, the second chamber configured to pulverize the processed biomass and feed the processed biomass into the coal combusting apparatus in a second concentration weight of feedstock with the ratio of the first concentration weight to the second concentration weight is between 1 to 9 and 9 to 1.