Have you spoken with anyone at the company regarding your concerns? Have you visited NF to see the operation? I saw in an earlier post that you professed to have a financial reason to see the company succeed. They company is always happy to speak with shareholders.
for starters carbon black is just carbon. that's why they don't call it carbon hydrogen
so if you crack a C2H4 ethylene molecule into methane (as you used for an example) you get C1H4 which is methane and C1 which is carbon black
u can draw a similar scenario to make any hydrocarbon chain of fuel backing out the excess carbon as carbon black. it doesn't need to bond with oxygen expecially in an environment where there is no oxygen