Carburet

Where there may be objections to the use or application of the foregoing mode of using peat gas for illuminating purposes, I employ another method of obtaining that object, and which is to carburet the peat gas by means of charred peat, in the same way as I carburet the vapours of sulphur to educe a bisulphuret of carbon. William Benson Stones, an 1850 patent

Later models were fuel-injected, but the earliest ones were carbureted.