河南化工
河南化工
하남화공
HENAN CHEMICAL INDUSTRY
2012年
17期
38-42
,共5页
Ni-La/SiO2催化剂%大豆油氢化%非选择性加氢%硬化油
Ni-La/SiO2催化劑%大豆油氫化%非選擇性加氫%硬化油
Ni-La/SiO2최화제%대두유경화%비선택성가경%경화유
Ni - La/SiO2 atalyst%hydrogenation of soybean oil%unselective hydrogenation%hydrogenated oil
以硅酸钠为原料用化学沉淀法制备了SiO2,用浸渍法制备了Ni-La/SiO2催化剂前体,然后用H2气还原得到了Ni-La/SiO2催化剂。分别用XRD、SEM和TEM、N2吸附—脱附等技术对载体和催化剂进行了表征,结果表明：掺杂镧可以促进镍活性中心的形成以及有效防止Ni颗粒的团聚。考察了不同Ni/La比的催化剂对大豆油非选择性加氢的催化性能,优化了大豆油加氢条件,大豆油的碘值可由130降低至1.6。
以硅痠鈉為原料用化學沉澱法製備瞭SiO2,用浸漬法製備瞭Ni-La/SiO2催化劑前體,然後用H2氣還原得到瞭Ni-La/SiO2催化劑。分彆用XRD、SEM和TEM、N2吸附—脫附等技術對載體和催化劑進行瞭錶徵,結果錶明：摻雜鑭可以促進鎳活性中心的形成以及有效防止Ni顆粒的糰聚。攷察瞭不同Ni/La比的催化劑對大豆油非選擇性加氫的催化性能,優化瞭大豆油加氫條件,大豆油的碘值可由130降低至1.6。
이규산납위원료용화학침정법제비료SiO2,용침지법제비료Ni-La/SiO2최화제전체,연후용H2기환원득도료Ni-La/SiO2최화제。분별용XRD、SEM화TEM、N2흡부—탈부등기술대재체화최화제진행료표정,결과표명：참잡란가이촉진얼활성중심적형성이급유효방지Ni과립적단취。고찰료불동Ni/La비적최화제대대두유비선택성가경적최화성능,우화료대두유가경조건,대두유적전치가유130강저지1.6。
SiO2 is prepared by deposition method using sodium silicate as material, used it as supporter to prepare the precursor of catalysts Ni - La/SiO2 by dipping method, and then reduced by H2 for getting Ni - La/SiO2 catalysts. The results of XRD, SEM, TEM and N2 - adsorption isotherm shows that the La heteroatom could facilitate the forming of Ni active centers and prevent reuniting of the Ni particles. The catalytic performance for the hydrogenation of soybean oil is very good and the iodine value of the soybean oil could be reduced from 130 to 1.6 under the hydrogenation experment conditions.
