Abstract:

To improve desulfurization efficiency of biogas, characteristics of self-forming framework type desulfurizer were studied in this paper, which was serviced for biogas safe utilization in countryside. SEM, EDX and pore size analysis were conducted to evaluate surface morphology, elements composition, pore size variation and sulfur volume between original and complete penetrate sample. As the results shown, self-forming framework improved the active ferric proportion, which will promote the desulfurization activity. Meanwhile, under conditions of airspeed 800h-1, first sulfur volume reached to 17.9%, and regeneration sulfur volume reached to 13.5%, which made the accumulated sulfur volume exceeded to39% and exhibited high desulfurization efficiency. It indicated that the factors of high activated ferric content, large surface and uniform pore size all could improve biogas desulfurization greatly.