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Hydrodesulfurization Properties of Nickel Phosphide on Boron‐treated Alumina Supports
ChemCatChem ( IF 3.8 ) Pub Date : 2020-06-26 , DOI: 10.1002/cctc.202000755 Catherine E. Miles 1, 2 , Tess R. Carlson 1, 2 , Benjamin J. Morgan 1, 2 , Peter J. Topalian 1, 2 , Jacob R. Schare 1, 2 , Mark E. Bussell 1, 2
ChemCatChem ( IF 3.8 ) Pub Date : 2020-06-26 , DOI: 10.1002/cctc.202000755 Catherine E. Miles 1, 2 , Tess R. Carlson 1, 2 , Benjamin J. Morgan 1, 2 , Peter J. Topalian 1, 2 , Jacob R. Schare 1, 2 , Mark E. Bussell 1, 2
Affiliation
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The deep hydrodesulfurization (HDS) properties of nickel phosphide (Ni2P) on boron‐modified alumina (xB−Al2O3) supports having different B contents have been investigated. Ni2P precursors were prepared on the xB−Al2O3 supports using hypophosphite (‐hypo) or phosphate (‐phos) as the P source and were subsequently reduced in flowing hydrogen. The 4,6‐dimethyldibenzothiophene HDS activities and turnover frequencies of the Ni2P/xB−Al2O3 catalysts showed a strong dependence on B loading, with a maximum observed for the hypophosphite‐ and phosphate‐based Ni2P/B−Al2O3 catalysts corresponding to 0.8 wt % and 1.2 wt % B loadings, respectively. Based on XPS and IR spectral measurements, the optimal B loadings corresponded to ∼20 % B2O3 coverage of the γ‐Al2O3 support and coincided with removal of the most basic hydroxyl groups on the alumina surface. At 573 K, a Ni2P/0.8B−Al2O3‐hypo catalyst was 2.5 times more active than a B‐free Ni2P/Al2O3‐hypo catalyst, while a Ni2P/1.2B−Al2O3‐phos catalyst was 8.6 times more active than a B‐free Ni2P/Al2O3‐phos catalyst. Overall, the hypophosphite‐based Ni2P/B−Al2O3 catalysts exhibited higher HDS activities than the phosphate‐based Ni2P/B−Al2O3 catalysts, in part due to smaller Ni2P particle sizes. The optimized catalysts, Ni2P/0.8B−Al2O3‐hypo and Ni2P/1.2B−Al2O3‐phos, were more active than a sulfided Ni−Mo/Al2O3 catalyst.
中文翻译：
硼处理氧化铝载体上磷化镍的加氢脱硫特性
研究了硼含量不同的硼改性氧化铝（xB-Al 2 O 3）载体上磷化镍（Ni 2 P）的深加氢脱硫（HDS）性能。倪2上的XB-铝制备的p前驱2个ö 3用次（-hypo）或磷酸盐（-phos）作为P源和载体随后在流动的氢气还原。Ni 2 P / xB-Al 2 O 3催化剂的4,6-二甲基二苯并噻吩HDS活性和周转频率显示出对B负载的强烈依赖性，次磷酸盐和磷酸盐基Ni 2 P / B-的最大值铝2O 3催化剂分别对应于0.8重量％和1.2重量％的B负载量。根据XPS和IR光谱测量，最佳乙负载对应于约20％B 2 ö 3所述的γ-Al的覆盖2 ö 3支撑，并与氧化铝表面上去除最基本羟基一致。在573 K时，Ni 2 P / 0.8B-Al 2 O 3 -hypo催化剂的活性是不含B的Ni 2 P / Al 2 O 3 -hypo催化剂的2.5倍，而Ni 2 P / 1.2B- Al 2 O 3 -phos催化剂的活性是无B Ni的8.6倍2 P / Al 2 O 3 -phos催化剂。总体而言，基于次磷酸盐镍2 P / B-Al系2 ö 3催化剂比基于磷酸盐的镍表现出较高的HDS活性2 P / B-Al系2 ö 3由于较小的镍催化剂，在部分2 P-粒子尺寸。优化催化剂，镍2 P / 0.8B-Al系2 ö 3 -hypo和Ni 2 P / 1.2B-Al系2个ö 3 -phos ，比硫化的镍-钼/铝多种活性2 ö 3催化剂。
更新日期：2020-06-26
中文翻译：
硼处理氧化铝载体上磷化镍的加氢脱硫特性
研究了硼含量不同的硼改性氧化铝（xB-Al 2 O 3）载体上磷化镍（Ni 2 P）的深加氢脱硫（HDS）性能。倪2上的XB-铝制备的p前驱2个ö 3用次（-hypo）或磷酸盐（-phos）作为P源和载体随后在流动的氢气还原。Ni 2 P / xB-Al 2 O 3催化剂的4,6-二甲基二苯并噻吩HDS活性和周转频率显示出对B负载的强烈依赖性，次磷酸盐和磷酸盐基Ni 2 P / B-的最大值铝2O 3催化剂分别对应于0.8重量％和1.2重量％的B负载量。根据XPS和IR光谱测量，最佳乙负载对应于约20％B 2 ö 3所述的γ-Al的覆盖2 ö 3支撑，并与氧化铝表面上去除最基本羟基一致。在573 K时，Ni 2 P / 0.8B-Al 2 O 3 -hypo催化剂的活性是不含B的Ni 2 P / Al 2 O 3 -hypo催化剂的2.5倍，而Ni 2 P / 1.2B- Al 2 O 3 -phos催化剂的活性是无B Ni的8.6倍2 P / Al 2 O 3 -phos催化剂。总体而言，基于次磷酸盐镍2 P / B-Al系2 ö 3催化剂比基于磷酸盐的镍表现出较高的HDS活性2 P / B-Al系2 ö 3由于较小的镍催化剂，在部分2 P-粒子尺寸。优化催化剂，镍2 P / 0.8B-Al系2 ö 3 -hypo和Ni 2 P / 1.2B-Al系2个ö 3 -phos ，比硫化的镍-钼/铝多种活性2 ö 3催化剂。
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