Abstract: The present invention relates to a high pressure process for Pre-Combustion and Post-Combustion CO2 capture (HP/MP/LP gasification) from a CO2 gas stream (CO2-Stream) by way of CO2 total subcritical condensation (CO2-CC), separation of liquid CO2, higher pressure elevation of obtained liquid CO2 via HP pump, superheating of CO2 up to high temperature for driving of a set of CO2 expander turbines for additional power generation (CO2-PG), EOR or sequestration (First new Thermodynamic Cycle). The obtained liquid CO2 above, will be pressurized at a higher pressure and blended with HP water obtaining high concentrated electrolyte, that is fed into HP low temperature electrochemical reactor (HPLTE-Syngas Generator) wherefrom the cathodic syngas and anodic oxygen will be performed. In particular the generated HP oxygen/syngas will be utilized for sequential combustion (“H2/O2-torches”) for super-efficient hydrogen based fossil power generation (Second new Thermodynamic Cycle).

Abstract: The present process invention in continuation to the U.S. Ser. No. 14/392,066 appertains to Advanced Combustion in post-combustion carbon capture, wherein the CO2-containing flue gas, said CO2-Stream, is cleaned from harmful constituents, recirculated, oxygenized and employed for combustion for the fossil fuels, referred to Flue Gas Oxy-Fueling in order to obtain a CO2-rich gas upstream to CO2-CC with significantly less gas flow rate subject to further processing. This continuation process patent also presents processing to prepare a CO2-rich CO2-Stream for the pre-combustion carbon capture downstream of gasification and gas cleaning process; or from the secondary CO2-Stream that stems from the cathodic syngas [CO/2H2] downstream of HPLTE-SG of patent parent, then downstream of the HP/IP-water shift converters in [CO2/3H2] composition, whereas the CO2-rich CO2-Stream from either pre-combustion process is routed to the CO2-CC for CO2 cooling and condensation section of the U.S. Ser. No.

Abstract: The present invention relates to a high pressure process for Pre-Combustion and Post-Combustion CO2 capture (HP/MP/LP gasification) from a CO2 gas stream (CO2-Stream) by way of CO2 total subcritical condensation (CO2-CC), separation of liquid CO2, higher pressure elevation of obtained liquid CO2 via HP pump, super-heating of CO2 up to high temperature for driving of a set of CO2 expander turbines for additional power generation (CO2-PG), EOR or sequestration (First new Thermodynamic Cycle). The obtained liquid CO2 above, will be pressurized at a higher pressure and blended with HP water obtaining high concentrated electrolyte, that is fed into HP low temperature electrochemical reactor (HPLTE-Syngas Generator) wherefrom the cathodic syngas and anodic oxygen will be performed. In particular the generated HP oxygen/syngas will be utilized for sequential combustion (“H2/O2-torches”) for super-efficient hydrogen based fossil power generation (Second new Thermodynamic Cycle).

Abstract: The present invention demonstrates a continuous process for dry conveying of powdered coal either a blend of carbonaceous material subject to partial oxidization whereby the conveying feed will be transferred via a suitable conveyer from an atmospheric silo to a or a number of extruder's LP Feeder Vessel and be fed over extruder's inlet chute in continuo to a or a number of extruder(s), in which the dry feed material will be densificated along the compression zone of that extruder up to high pressure and will be discharged over outlet chute into a downstream said First Pressurized Vessel, wherefrom the feeding precursor will be transported via a or a number of in series pressurized tubular-drag conveyor to the said Second Pressurized Vessel, which is equipped with one or more Reactor Feeding Unit(s), referred to Splitter(s), each one consisting of a Star Valve, Reactor-Feed-Line and a said Injection-Line for pneumatic conveying individually, whereby the feed carbonaceous material will be exposed to with injec

Abstract: The invention relates to a high pressure method for producing pure melamine by pyrolyzing urea in a vertical synthesis reactor. The synthesis reactor has three stages above one another: a) in the first stage, the smaller portion of the total amount of urea is introduced into the central tube of a first tank reactor forming a first melamine-containing reaction medium; b) in the second stage, the first melamine-containing reaction medium and the larger portion of the total amount of urea is introduced into the central tube of a second tank reactor forming a second melamine-containing reaction medium; c) in the third stage, the second melamine-containing reaction medium is introduced into a vertical tubular flow reactor forming a raw melamine melt that is processed to obtain pure melamine.

Abstract: A process for preparing melamine by pyrolysis of urea in a high-pressure process, in which urea is reacted together with NH3 to give melamine and the melamine melt formed is fed together with further urea to a cooling reactor, with the melt being cooled to a temperature which is 1-50° C., preferably 1-30° C., above the melting point of the melamine, which is dependent on the prevailing NH3 pressure. Introduction of NH3 in countercurrent drives out the CO2 formed, after which the melamine melt is worked up in any appropriate way.

Abstract: A process for preparing melamine by pyrolysis of urea in a high-pressure process, in which urea is reacted together with NH3 to give melamine and the melamine melt formed is fed together with further urea to a cooling reactor, with the melt being cooled to a temperature which is 1-50° C., preferably 1-30° C., above the melting point of the melamine, which is dependent on the prevailing NH3 pressure. Introduction of NH3 in countercurrent drives out the CO2 formed, after which the melamine melt is worked up in any appropriate way.