The present invention relates to a method for conditioning a soot-containing syngas stream in a single integrated apparatus containing a scrubbing vessel wherein particulate matter is decoupled from the waste water stream.

The present invention relates to a method for conditioning a soot-containing syngas stream in a single integrated apparatus containing a scrubbing vessel wherein particulate matter is decoupled from the waste water stream.

An experimental method for coal desulfurization and deashing using permeation and solvating power of a supercritical fluid includes the following steps. The coal sample is ground and loaded into an extraction kettle with a cover. An inlet valve and an outlet valve of the extraction kettle are opened to circulate the supercritical CO.sub.2 fluid in the extraction kettle. The extraction kettle is sealed. By adjusting a temperature and a pressure in the extraction kettle, the supercritical CO.sub.2 fluid is kept at its critical point and permeates the coal sample to dissolve organic sulfur, inorganic sulfur and ash in the coal sample. The extraction kettle is depressurized, and the temperature in the extraction kettle is adjusted to gasify the supercritical CO.sub.2 fluid. The organic sulfur, the inorganic sulfur and part of the ash are separated from the supercritical CO.sub.2 fluid and precipitated at a bottom of the extraction kettle.

A system for producing biomass pellets comprising a pan mill for comminuting a biomass material, a treatment means in which the comminuted biomass material is treated with an oxidizing reactant and a pellet press for pressing pellets from the treated biomass material. The invention further relates to an associated process. The intention is to initiate during pellet production oxidation reactions which can otherwise result in autoignition of the pellets in pellet heaps.

A system for producing biomass pellets comprising a pan mill for comminuting a biomass material, a treatment means in which the comminuted biomass material is treated with an oxidizing reactant and a pellet press for pressing pellets from the treated biomass material. The invention further relates to an associated process. The intention is to initiate during pellet production oxidation reactions which can otherwise result in autoignition of the pellets in pellet heaps.

The present invention relates to a method for conditioning a soot-containing syngas stream in a single integrated apparatus containing a scrubbing vessel wherein particulate matter is decoupled from the waste water stream.

The present invention relates to a method for conditioning a soot-containing syngas stream in a single integrated apparatus containing a scrubbing vessel wherein particulate matter is decoupled from the waste water stream.

The present invention relates to a method for conditioning a soot-containing syngas stream in a single integrated apparatus containing a scrubbing vessel wherein particulate matter is decoupled from the waste water stream.

The present invention relates to a method for conditioning a soot-containing syngas stream in a single integrated apparatus containing a scrubbing vessel wherein particulate matter is decoupled from the waste water stream.

Processes are provided for the oxidative solubilization of metal-containing petroleum cokes in a basic aqueous solution, so as to segregate a solid metal-containing residue from a solubilized and demineralized organics fraction. Oxidation conditions are provided that optimize the yield of soluble partial oxidation products and minimize the generation of CO.sub.2. In some embodiments, a nanocrystalline copper tetrasilicate oxidation catalyst belonging to the Gillespite group of minerals may be used (Cuprorivaite (CaCuSi.sub.4O.sub.10), Wesselsite (SrCuSi.sub.4O.sub.10), Effenbergerite (BaCuSi.sub.4O.sub.10), or combinations thereof). The pH of the solubilized organics fraction may be reduced, under conditions that precipitate an upgraded carbonaceous material, in some embodiments comprising humic acid analogs, yielding a barren leachate solution.