Preparation and characterization of Ni/TPC catalyst and applied in straw pyrolysis gas reforming

Tire pyrolysis char (TPC) was used as a carrier to prepare Ni/TPC catalyst by homogeneous precipitation method. The characteristic of synthetic catalyst was determined by EDX, SEM, XRD, TG and BET. Meanwhile, the performance of Ni/TPC catalyst including reforming temperature, holding time, nickel loading and usage time on the straw pyrolysis gas reforming was investigated in a tube furnace. The results showed that TPC was rich in char and metal. Ni was well loaded on TPC which had a good thermal stability with a specific surface area of 62 m²/g. The Ni/TPC catalyst could obviously improve the burning gas content. The highest catalytic efficiency was obtained at reforming temperature of 750 ℃ and 10 min holding time with 30% Ni loading. The content of H₂ in the gas was high and relatively increased by 50% after using the catalyst for 850 min. The Ni₃ZnC_0.7 active component structure converted to FeNi₃ after long-term used with high and stable catalytic activity. TPC had the ability to be a new type of carrier for nickel catalyst.