Do you really expect these inventors to compromise their patented process with you? Why should they? You should be happy your future energy costs will drop thanks to these Global Warming problem solvers.
This is American intellectual property just like software.

With regard to the carbon and sulfur produced, I’d like to know their form and how they are separated. For instance, does the carbon precipitate first and then sulfur condensed afterward? What is the particle size distribution of the carbon product? What happens to the catalyst activity as carbon and sulfur are produced?

Certainly, the removal of hydrogen sulfur to the ppb levels alone could be commercially valuable. In that regard, I’d like to learn more of the details of the experiment and the gas chromatography (GC) analysis. For instance, what were the flow rates and concentrations of the hydrogen sulfide and carbon dioxide reactants? What was the sample size, column, conditions and detector used for the GC analysis? Were any other sulfur compounds besides elemental sulfur detected as a reaction product, such as carbonyl sulfide or carbon disulfide?