화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2006년 가을 (10/27 ~ 10/28, 고려대학교)
권호 12권 2호, p.1990
발표분야 에너지/환경
제목 The properties of Zn-Ti-based desulfurization sorbent prepared by various co-precipitation method
초록 Sulfur removing capacities and regeneration properties of Zn-Ti sorbents prepared by various co-precipitation method were tested in micro reactor at 1 atm and middle-temperature condition (sulfidation : 480oC, regeneration : 580oC). The various co-precipitation methods are controlled by the precursor, pH, aging time. In the case of Zn-Ti sorbent precipitated by NaOH, its sulfur removing capcity showed the 16 g S/g sorbent and no deactivation during multiple sulfidation and regeneration cycles. While, that of Zn-Ti sorbent precipitated by NH4OH showed 14 g S/g sorbent and deactivated during multiple cycles. The sulfur removing capacity of Zn-Ti sorbent precipitated until pH 10 is better than that of Zn-Ti sorbent precipitated until pH 8. The suitable aging time is between 12 hr and 18 hr. The difference in the sulfur removing capacities and regeneration properties of these sorbents were thought to be due to their crystal structures and physical properties measured by using X-ray diffraction, BET and TEM images before/after H2S reaction, which were deeply related with preparation method.
저자 정석용1, 김재창1, 이수재1, 박정제1, 이태진2, 류청걸3
소속 1경북대, 2영남대, 3한전전력(연)
키워드 Zn-Ti sorbent; sulfur removing capacity; co-precipitation
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