Reactor for on-demand high pressure hydrogen

A method for producing on-demand H2 from organic hydrogen carriers and/or blends thereof, the method comprising:

• providing a reaction vessel having a catalyst system disposed therein;
• continuously flowing a preheated liquid organic hydrogen carrier or a blend thereof into the reaction vessel over a predetermined period of time at pressures greater than or equal to 50 psig;
• and
• purifying an output stream from the reaction vessel to obtain purified molecular hydrogen gas.

A flow reactor system for providing on-demand H2 evolution at pressure from liquid organic hydrogen carriers and/or blends thereof comprising:

• a reactor that includes a reaction vessel having an inlet and outlet, the inlet configured to introduce reactants into the reaction vessel and the outlet configured to release reaction products as a gaseous reaction product stream, the reaction vessel configured to hold therein a catalyst system capable of catalyzing evolution of molecular hydrogen from a liquid organic hydrogen carrier or a blend thereof, the reaction vessel configured to operate at pressures greater than or equal to 50 psig;
• a source of preheated fuel in fluid communication with the reactor;
• a purification system in fluid communication with the outlet, the purification system providing purified molecular hydrogen gas;
• and
• a reflux condenser attached to the outlet, the reflux condenser operated to allow the gaseous reaction product stream to pass therethrough while condensing liquids.

A flow reactor system for providing on-demand H2 evolution at pressure from liquid organic hydrogen carriers and/or blends thereof comprising:

• a reactor that includes a reaction vessel having an inlet and outlet, the inlet configured to introduce reactants into the reaction vessel and the outlet configured to release reaction products as a gaseous reaction product stream, the reaction vessel configured to hold therein a catalyst system capable of catalyzing evolution of molecular hydrogen from a liquid organic hydrogen carrier or a blend thereof, the reaction vessel configured to operate at pressures greater than or equal to 50 psig;
• a source of preheated fuel in fluid communication with the reactor;
• and
• a purification system in fluid communication with the outlet, the purification system providing purified molecular hydrogen gas, wherein the liquid organic hydrogen carrier includes formic acid and a hydrogen-rich liquid other than formic acid.

A flow reactor system for providing on-demand H2 evolution at pressure from liquid organic hydrogen carriers and/or blends thereof comprising:

• a reactor that includes a reaction vessel having an inlet and outlet, the inlet configured to introduce reactants into the reaction vessel and the outlet configured to release reaction products as a gaseous reaction product stream, the reaction vessel configured to hold therein a catalyst system capable of catalyzing evolution of molecular hydrogen from a liquid organic hydrogen carrier or a blend thereof, the reaction vessel configured to operate at pressures greater than or equal to 50 psig;
• a source of preheated fuel in fluid communication with the reactor;
• and
• a purification system in fluid communication with the outlet, the purification system providing purified molecular hydrogen gas, wherein the purification system includes a CO2 condenser that receives the gaseous reaction product stream, the CO2 condenser cooling the gaseous reaction product stream and outputting a first liquid CO2 stream and a first H2-containing gaseous stream, the first liquid CO2 stream flowing to a flash separator that depressurizes liquid CO2 thereby allowing dissolved H2 to be recycled back to the CO2 condenser.