Abstract: A method for treating a carbonaceous material including heating a carbonaceous material to move at least a portion of tar through the carbonaceous material toward a surface of the carbonaceous material to form a tar coating on the surface. The method also includes cooling the carbonaceous material and the tar coating on the surface to form a tar-coated carbonaceous material, wherein at least the portion of tar that forms the tar coating on the surface remains in contact with the carbonaceous material while the carbonaceous material is heated to form the tar coating and while the carbonaceous material and the tar coating are cooled to form the tar-coated carbonaceous material.

Abstract: The present application provides a slurry concentration system for concentrating a flow of slurry. The slurry concentration system may include a boiler for producing a flow of steam, a first evaporator for concentrating the flow of slurry with the flow of steam and creating a first flow of water vapor, and a second evaporator positioned downstream of the first evaporator for further concentrating the flow of slurry with the first flow of water vapor and creating a second flow of water vapor.

Abstract: The present application provides a slurry concentration system for concentrating a flow of slurry. The slurry concentration system may include a boiler for producing a flow of steam, a first evaporator for concentrating the flow of slurry with the flow of steam and creating a first flow of water vapor, and a second evaporator positioned downstream of the first evaporator for further concentrating the flow of slurry with the first flow of water vapor and creating a second flow of water vapor.

Abstract: A system includes a feed preparation system, with a fluid injection system configured to inject a fluid into a feed stream to generate a feed-fluid mixture. The feed stream includes a first solid, a second solid, and a gas. The feed preparation system also includes a cyclone configured to separate the feed-fluid mixture into a first stream that includes the first solid and the gas, and a second stream that includes the second solid and the fluid.

Abstract: A method for treating a carbonaceous material comprising heating a carbonaceous material to form a mixture of the carbonaceous material and a tar; cooling the mixture of the carbonaceous material and the tar; and coating a surface of the carbonaceous material with the tar to form a tar-coated carbonaceous material, and a system related thereto.

Abstract: A coal separation unit for a gasification system includes a vessel having a top portion and a bottom portion, a first inlet configured to receive a feed stream including at least coal and ash from a grinding unit, a second inlet configured to receive a wash fluid stream, a first outlet configured to convey a low-ash feed stream, and a second outlet configured to convey an ash-rich stream. In operation, the feed stream is washed with the wash fluid stream in the separation unit to separate at least a portion of the ash from the coal. The separated ash settles to the bottom portion of the vessel and is conveyed via the second outlet as the ash-rich stream. The separated coal floats to the top portion of the vessel and is conveyed via the first outlet to a gasification unit as the low-ash feed stream.

Abstract: A black water treatment system for a flow of black water. The black water treatment system may include one or more non-vacuum flash drums and a scrub-cooler. The scrub-cooler may include a water pathway with a nitrogen tube and a flow of nitrogen therein.

Abstract: The present application and the resultant patent provide a black water treatment system for a flow of black water. The black water treatment system may include one or more non-vacuum flash drums and a scrub-cooler. The scrub-cooler may include a water pathway with a nitrogen tube and a flow of nitrogen therein.