I have placed both an Emitter and Infinite Emitter into a test world, placed a stack or more of Carbon (from MineChem), but no particles are ever emitted. I have watched Bevo's Mod Spotlight a number of times (it's what brought your mods to my attention) and all I'm seen him do is place the Emitter, insert some Carbon, and it starts sending out particles.

Minecraft 1.6.4
Forge 9.11.1.965 (also tried 9.11.1.953)
Ender IO 1.0.6
MineChem 5.0.5.81
Particle Physics 1.0.1.27

Currently there's no integration with Minechem. Try using actual coal, glass, clay, leaves, etc.