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US 2022/0033728 A1Published application
A Process for Producing Clean Coal Using Chemical Pre-Treatment and High Shear Reactor
AssigneeControlamatics Corporation
InventorsDino Favetta, Tao Chen, Robert Tinder
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Abstract
A method of processing raw coal using activation agents (e.g., solvents and extractants) in a high shear reactor, which creates high shearing forces to break apart the coal and selectively extract and remove contaminants such as ash, sulfur, and other heavy metal impurities resulting in clean, high caloric-value coal.
Claims20
A method for producing clean coal comprising:
- a. grinding coal particles into a dust-like consistency, having a diameter between about 20 μm and 80 μm;
- b. mixing the ground coal particles with at least one extractant/solvent to produce a coal slurry;
- c. introducing at least one activation agent, wherein the at least one activation agent selectively removes at least one impurity from the coal slurry;
- d. introducing the coal slurry into a thin-film shear reactor, wherein the thin-film shear reactor promotes contact of the ground coal particles and the at least one activation agent;
- and
- e. introducing a non-polar organic solvent to extract the coal slurry from the at least one impurity,
- wherein the at least one activation agent and the non-polar organic solvent are introduced in the liquid phase;
- and
- wherein extraction of the coal slurry from the at least one impurity yields a processed clean coal.
6 more elements
Dependencies are inferred from the claim text.