Internal combustion system using acetylene fuel

A method of operating an internal combustion system, comprising the steps of:

• a) providing a secondary fuel stream having a first flow rate for starting-up and operating the internal combustion system, said secondary fuel streams selected from the group consisting of C.sub.2 -C.sub.6 ethers;
• b) providing a primary fuel stream containing acetylene having a second flow rate for operating, in cooperation with the secondary fuel, the internal combustion system after warm-up;
• and
• c) separately introducing after warm-up of the internal combustion system said primary and secondary fuel streams to the internal combustion engine intake port, said primary and secondary fuel stream flow rates being separately adjustable.

A method of operating an internal combustion system, comprising the steps of:

• a) providing a secondary fuel stream having a first flow rate for staring-up and operating the internal combustion system, said secondary fuel streams selected from the group consisting of methyl formate, ethyl formate, n-propyl formate, n-butyl formate;
• methyl acetate, ethyl acetate, n-propyl acetate, isopropyl acetate;
• n-butyl acetate, sec-butyl acetate, tert-butyl acetate, isobutyl acetate;
• n-amyl acetate, n-hexyl acetate, n-octyl acetate;
• and ethyl propionate, ethyl n-butyrate, ethyl isobutyrate;
• b) providing a primary fuel stream containing acetylene having a second flow rate for operating, in cooperation with the secondary fuel, the internal combustion system after warm-up;
• and
• c) separately introducing after warm-up of the internal combustion system said primary and secondary fuel streams to the internal combustion engine intake port, said primary and secondary fuel stream flow rates being separately adjustable.

A method of operating an internal combustion system, comprising the steps of:

• a) providing a secondary fuel stream having a first flow rate for starting-up and operating the internal combustion system, said secondary fuel streams selected from the group consisting of C.sub.1 -C.sub.12 alcohols;
• b) providing a primary fuel stream containing acetylene having a second flow rate for operating, in cooperation with the secondary fuel, the internal combustion system after warm-up;
• and
• c) separately introducing after warm-up of the internal combustion system, said primary and secondary fuel streams to the internal combustion engine, said primary and secondary fuel streams being separately adjustable.