煤炭转化
煤炭轉化
매탄전화
COAL CONVERSION
2010年
2期
68-71
,共4页
樊劭%王彩红%袁振%王东飞%杨双凤%刘博%许德平
樊劭%王綵紅%袁振%王東飛%楊雙鳳%劉博%許德平
번소%왕채홍%원진%왕동비%양쌍봉%류박%허덕평
甲烷化%镍基催化剂%XRD%TPR%SEM
甲烷化%鎳基催化劑%XRD%TPR%SEM
갑완화%얼기최화제%XRD%TPR%SEM
methanation%nickel based catalyst%XRD%TPR%SEM
用沉淀法制备了镍基甲烷化催化剂,采用X-射线衍射、氢气程序升温还原和扫描电镜等技术对合成催化剂进行了表征.结果表明,铝助剂对形成微球状催化剂有较大的促进作用,铝铈助剂对镍基催化剂的还原有明显的促进作用,铈助剂大幅提高了催化剂的抗积碳能力.复合催化剂的催化活性明显高于单一催化剂.
用沉澱法製備瞭鎳基甲烷化催化劑,採用X-射線衍射、氫氣程序升溫還原和掃描電鏡等技術對閤成催化劑進行瞭錶徵.結果錶明,鋁助劑對形成微毬狀催化劑有較大的促進作用,鋁鈰助劑對鎳基催化劑的還原有明顯的促進作用,鈰助劑大幅提高瞭催化劑的抗積碳能力.複閤催化劑的催化活性明顯高于單一催化劑.
용침정법제비료얼기갑완화최화제,채용X-사선연사、경기정서승온환원화소묘전경등기술대합성최화제진행료표정.결과표명,려조제대형성미구상최화제유교대적촉진작용,려시조제대얼기최화제적환원유명현적촉진작용,시조제대폭제고료최화제적항적탄능력.복합최화제적최화활성명현고우단일최화제.
CT A series of catalysts for methanation on silica-supported nickel was prepared by precipitation and the catalysts were analyzed by XRD, TPR and SEM. The results showed that aluminum addition was helpful to form microballoon catalyst and adding aluminum and cerium could accelerate reduction of catalyst. Cerium addition could obviously improve the carbon distribution of catalyst. The reaction activity of complex catalyst was higher than those of monotypic catalyst.
