天然气化工
天然氣化工
천연기화공
NATURAL GAS CHEMICAL INDUSTRY
2014年
5期
1-6
,共6页
郭芳%邱泽刚%赵亮富%相宏伟
郭芳%邱澤剛%趙亮富%相宏偉
곽방%구택강%조량부%상굉위
钨源%浸渍方法%加氢脱氮%NiW/MCM-41
鎢源%浸漬方法%加氫脫氮%NiW/MCM-41
오원%침지방법%가경탈담%NiW/MCM-41
tungsten precursor%impregnation method%hydrodenitrogenation%NiW/MCM-41
考察钨源（磷钨酸和偏钨酸铵）和浸渍方法（共浸渍和分步浸渍）对以 MCM-41为载体的 NiW 基催化剂的物化性质及催化喹啉加氢脱氮反应的影响，并通过 XRD、FT-IR、UV-DRS、XPS 和 Py-IR 等表征手段对样品进行了表征。结果表明：以偏钨酸铵为钨源采用共浸渍法制备的催化剂具有最高的加氢脱氮活性。该催化剂钨物种的分散度最高，表面酸量及活性物种前体最多。
攷察鎢源（燐鎢痠和偏鎢痠銨）和浸漬方法（共浸漬和分步浸漬）對以 MCM-41為載體的 NiW 基催化劑的物化性質及催化喹啉加氫脫氮反應的影響，併通過 XRD、FT-IR、UV-DRS、XPS 和 Py-IR 等錶徵手段對樣品進行瞭錶徵。結果錶明：以偏鎢痠銨為鎢源採用共浸漬法製備的催化劑具有最高的加氫脫氮活性。該催化劑鎢物種的分散度最高，錶麵痠量及活性物種前體最多。
고찰오원（린오산화편오산안）화침지방법（공침지화분보침지）대이 MCM-41위재체적 NiW 기최화제적물화성질급최화규람가경탈담반응적영향，병통과 XRD、FT-IR、UV-DRS、XPS 화 Py-IR 등표정수단대양품진행료표정。결과표명：이편오산안위오원채용공침지법제비적최화제구유최고적가경탈담활성。해최화제오물충적분산도최고，표면산량급활성물충전체최다。
The effects of W precursors (phosphotungstic acid (HPW), ammonium paratungstate (APT)) and impregnation methods (co-impregnation (CI), sequential impregnation (SI)) on the structure and quinoline hydrodenitrogenation behavior of MCM-41 supported NiW catalysts were investigated. The catalysts were characterized by XRD, FT-IR, DRS, XPS and Py-IR techniques. The results showed that the catalyst with APT as W precursor prepared by co-impregnation exhibited the highest HDN activity. This catalyst exhibited the highest dispersion of W species and the highest amounts of active species and acidic sites.
