现代化工
現代化工
현대화공
MODERN CHEMICAL INDUSTRY
2010年
1期
54-56
,共3页
非晶态Ni-B/γ-Al_2O_3%结构表征%苯%环己烷%加氢
非晶態Ni-B/γ-Al_2O_3%結構錶徵%苯%環己烷%加氫
비정태Ni-B/γ-Al_2O_3%결구표정%분%배기완%가경
amorphous Ni-B/γ-Al_2O_3%structural characterization%benzene%cyclohexane%hydrogenation
采用化学还原法制备了镍质量分数为7%、镍硼摩尔比为1∶3.4的负载型Ni-B/γ-Al_2O_3非晶态合金催化剂,并对催化剂进行了表征.结果表明NiB以非晶态的形式负载在γ-Al_2O_3载体上;Ni-B/γ-Al_2O_3非晶态合金催化剂的晶化温度应在240～440℃;最佳活化温度在200～260℃.在反应压力0.5 MPa、氢苯比4、空速1.0 h-1的条件下,反应温度高于160℃时,苯加氢制环己烷产率均为100%.
採用化學還原法製備瞭鎳質量分數為7%、鎳硼摩爾比為1∶3.4的負載型Ni-B/γ-Al_2O_3非晶態閤金催化劑,併對催化劑進行瞭錶徵.結果錶明NiB以非晶態的形式負載在γ-Al_2O_3載體上;Ni-B/γ-Al_2O_3非晶態閤金催化劑的晶化溫度應在240～440℃;最佳活化溫度在200～260℃.在反應壓力0.5 MPa、氫苯比4、空速1.0 h-1的條件下,反應溫度高于160℃時,苯加氫製環己烷產率均為100%.
채용화학환원법제비료얼질량분수위7%、얼붕마이비위1∶3.4적부재형Ni-B/γ-Al_2O_3비정태합금최화제,병대최화제진행료표정.결과표명NiB이비정태적형식부재재γ-Al_2O_3재체상;Ni-B/γ-Al_2O_3비정태합금최화제적정화온도응재240～440℃;최가활화온도재200～260℃.재반응압력0.5 MPa、경분비4、공속1.0 h-1적조건하,반응온도고우160℃시,분가경제배기완산솔균위100%.
A supported Ni-B/γ-Al_2O_3 amorphous alloy catalyst with 1∶3.4 of the molar ratio of aluminium to boron and 7% of nickel mass fraction are prepared by and activation temperatures of Ni-B/γ-Al_2O_3 amorphous alloy catalysts are within the range of 240-440℃ and 200-260℃,respectively.Under reaction conditions of 0.5 MPa,ratio of hydrogen to benzene of 4,space velocity of 1.0 h-1,and the reaction temperature higher than 160℃,the yield of benzene hydrogenated to cyclohexane can be 100%.
