Abstract: A processed hydrocarbon-containing mixture including acetylene and butenyne is disclosed. The processed hydrocarbon-containing mixture can include acetylene, butenyne, and (a) at least 5% of an inert gas other than nitrogen, (b) greater than 30% nitrogen, or (c) both. A method of mixing the inert gas, nitrogen, or both and a unprocessed hydrocarbon-containing mixture is also disclosed. The method can include the use of flow controllers to adjust mixing ratio of the gasses. The compositions can exhibit tailored thermal output above 500 BTU/ft3. The compositions can exhibit tailored thermal output below 1,100 BTU/ft3. The processed hydrocarbon-containing mixture can exhibit a similar thermal output as natural gas with less CO2 emissions per normalized thermal output unit.

Abstract: A hydrocarbon-containing mixture including acetylene and butenyne is disclosed. The hydrocarbon-containing mixture can include 10% to 89% acetylene, 10% to 89% butenyne, and at least 0.25% dimethyl butadiyne. A method and system for producing the hydrocarbon-containing mixture is also disclosed. The system can include an acetylene production subsystem comprising at least one vessel and an acetylene output for delivering acetylene to a finishing vessel via a finishing vessel inlet. The finishing vessel can include a diffuser in fluid communication with the finishing vessel inlet, and gas exiting the diffuser can pass through a reaction chamber filled with solid calcium carbide before passing through a finishing vessel outlet.

Abstract: A hydrocarbon-containing mixture including acetylene and butenyne is disclosed. The hydrocarbon-containing mixture can include 10% to 89% acetylene, 10% to 89% butenyne, and at least 0.25% dimethyl butadiyne. A method and system for producing the hydrocarbon-containing mixture is also disclosed. The system can include an acetylene production subsystem comprising at least one vessel and an acetylene output for delivering acetylene to a finishing vessel via a finishing vessel inlet. The finishing vessel can include a diffuser in fluid communication with the finishing vessel inlet, and gas exiting the diffuser can pass through a reaction chamber filled with solid calcium carbide before passing through a finishing vessel outlet.