Specifications for the high temperature version you provided are close to what I used for the first reactor. I found a slab of the material in the maintenance stockroom and cut to size with shears before clean firing. Worked fine as the support for the NiO catalyst. The propane torch test is very useful to insure that the correct material is used before adding the catalyst. I can't overstate the need for the system to be sulfide free. Metal piping will add traces of H2S and poison the reactor.
