Abstract:Catalytic gasification ash (CGA) imposes potential hazards to the environment and additional costs for gasification. To recover the alkali catalysts and to reutilize CGA, the deactivation of Na 2 CO 3 , zeolite preparation by hydrothermal processing of CGA (HPGA), and the Cu 2+ adsorption behaviors of the prepared zeolite and its kinetics were studied. The results show that the catalytic reactivity of Na 2 CO 3 is very high, but Na 2 CO 3 is easy to generate deactivated sodium aluminum silicate (NaAlSiO 4 ). T… Show more
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