which is directly injected into an oxidizing atmosphere in a combustion chamber while at a temperature sufficiently elevated to enable hypergolic combustion therein the air fuel ratios are selected to minimize coke formation at the elevated temperatures of the product gas application_number US 81388285 A description in the following detailed description certain specific terminology will be employed for the sake of clarity and particular embodiment described in accordance with the requirements of 35 usc 112 but it is to be understood that the same is not intended to be limiting and should not be so construed inasmuch as the invention may take many forms within the scope of the appended claims as developed in detail in the the above referenced articles partial catalytic combustion may be generally applicable to liquid hydrocarbon fuel such as gasoline diesel fuel and light fuel oil this is described in detail in these references by operation at the appropriate air to fuel ratios activated hydrogen rich product gas can be produced without the production of coke such partial oxidation can be employed with catalytic beds of designs as described therein which may be operated for many hours without a significant reduction in catalytic efficiency for example an air to fuel ratio by 5 2 may be employed when using diesel fuel and which generates product gas at a reaction temperature in excess of 1000 c greatly exceeding the 1000 u00b0 f temperature required for hypergolic combustion according.