Application of mesoporous carbon, carbon nanohorns and M-SBA-15 (M=Zr and Ti) as support to Ni-Mo hydrotreating catalysts

近年来，由于更严格的环境法规以及对重质原油砂衍生沥青的日益依赖，石油工业正面临巨大的挑战。 Syncrude Canada Ltd.目前每天从油砂中生产250，000桶合成原油。 作为该合成原油的主要组分的重质瓦斯油含有较高量的硫（4wt%）和氮（0.4wt%）。%），其需要被去除以满足下游精炼工艺的规格。虽然硫的脱除相对容易，但用上述加氢处理催化剂难以从油砂衍生的油中脱除氮。 镍钼加氢催化剂的催化性能在一定程度上取决于所用载体。近年来，合成具有中孔结构的新型分子筛受到越来越多的关注。 得到的介孔分子筛具有各种结构和孔径，可以在宽范围（1.6- 30 nm）内控制。 这些新的分子筛提供了巨大的潜力的形状选择性传感，吸附和催化的大物种，限制了微孔（通常小于1 nm）的沸石。 本研究旨在开发高比表面积、宽孔M-SBA-15（M=Ti，Zr）、介孔碳和碳纳米角（CNHs）负载的高活性Ni-Mo硫化物催化剂，用于阿萨巴斯卡沥青衍生重柴油（HGO）的加氢脱氮（HDN）。 高表面积、各种孔径的可用性、可变的表面官能团、通过燃烧载体容易回收金属、降低的焦化倾向和对氮中毒的抗性预期增加Ni-Mo催化剂的活性。 将这些载体用于NiMo加氢处理催化剂将有助于从重质原油的大分子中除去N和S原子。 这将有助于参与的行业，加拿大合成原油有限公司，以提高瓦斯油的质量，这将符合下游炼油工艺的规格。 这项研究也有利于加拿大有效利用其丰富的石油资源。

In recent years, petroleum industries are facing tremendous challenges due to more stringent environmental regulations coupled with increasing reliance on heavy crude oil sands derived bitumen. Syncrude Canada Ltd. currently produces 250,000 bbl/day of synthetic crude oil from the oil sand. The heavy gas oil, which is a major component of this synthetic crude oil contains higher amounts of sulfur ( 4 wt%) and nitrogen ( 0.4 wt. %), which need to be removed to meet specifications of downstream refining processes. Although the removal of sulfur is relatively easy, it is difficult to remove nitrogen from oil sands derived oils with above hydroteating catalyst. It is well known that the catalytic performance of Ni-Mo hydrotreating catalyst depends on the support used to a certain extent, since. Recently there have been growing interests in the synthesis of new molecular sieves extending the pore diameter to the mesoporous region. The mesoporous molecular sieves are obtained with various structures and pore diameters that can be controlled over a wide range (1.6-30nm). These new molecular sieves offer great potential for the shape-selective sensing, adsorption, and catalysis of large species that were limited by the micropores (typically less than 1nm) of zeolites. The present research proposal aims at the development of highly active Ni-Mo sulfide catalysts supported on high surface area, wide pore M-SBA-15 (M=Ti,Zr), mesoporous carbon and Carbon Nano Horns (CNHs) for hydrodenitrogenation (HDN) of Athabasca bitumen derived heavy gas oil (HGO). The high surface area, availability of a large variety of pore sizes, variable surface functional groups, easy metal recovery by the burning of the support, reduced coking propensity, and resistance to nitrogen poisoning are expected to increase the activity of the Ni-Mo catalysts. The use of these supports for NiMo hydrotreating catalyst will facilitate the removal of N and S atoms from the bulky molecules of heavy crude oil. This will help the participating industry, Syncrude Canada Ltd. to improve the quality of gas oil, which will meet specifications of downstream refining processes. This research also benefits Canada by efficient utilization of its vast oil resources.