Co-combustion of cereal co-product (CCP) with a UK coal (Daw Mill): Combustion gas composition and deposition

► Pilot scale co-firing experiments were performed using CCP with Daw Mill Coal at levels of 0, 20, 40, 60, 80 and 100 wt.%. ► Increasing the share of CCP in the fuel mixes resulted in a reduction of SOx and HCl but no significant change in NOx. ► Increasing the levels of CCP in the fuel mixes showed a decreasing trend in deposition fluxes. ► With increasing levels of CCP co-firing the levels of K, S, P increased and Al, Fe, Ti decreased in the deposits. ► Alkali chlorides were only found (on all three probes) when the CCP was fired without any coal addition.