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首页> 外文期刊>Renewable & Sustainable Energy Reviews >Preparation, modification and development of Ni-based catalysts for catalytic reforming of tar produced from biomass gasification
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Preparation, modification and development of Ni-based catalysts for catalytic reforming of tar produced from biomass gasification

机译：用于生物质气化焦油催化重整的镍基催化剂的制备，改性和开发

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Biomass gasification is one of the most promising technologies to convert renewable biomass feedstock to useful energy and chemicals for decarbonizing the current industrial activities. However, complex tar compounds are formed in the produced syngas. The presence of tar in syngas is undesirable due to a series problems caused, such as the decrease of overall efficiency and the clogging and contamination of downstream equipment. Until now, catalytic steam reforming has been widely studied for the efficient removal of tar. Previous review articles have focused on the catalytic reforming of tar by categorizing various catalysts as basic catalysts, nickel-based catalysts, non-nickel based catalysts, alkali metal catalysts, zeolite catalysts, and carbon-supported catalysts, etc. Ni-based steam-reforming catalysts have attracted much attention due to their high activity for tar reduction, low-cost and easy regeneration. However, the deactivation caused by the coke deposition and metal sintering remains the greatest challenge for the deployment of the technology. Therefore, modified Ni-based catalysts are now most frequently used for catalytic reforming of tar. At present, few review articles reported the modification of Ni-based catalysts for catalytic reforming of tar compounds. Based on this, the preparation, modification and development methods of Ni-based catalysts for catalytic reforming of tar are reviewed in this paper, aiming at promoting the catalytic performance of conventional Ni-based catalysts, in terms of high catalytic activity, long-term stability and better selectivity towards low molecular weight compounds.
机译：生物质气化是将可再生生物质原料转化为有用的能源和化学品以使当前工业活动脱碳的最有前途的技术之一。但是，在生成的合成气中会形成复杂的焦油化合物。由于引起一系列问题，例如总效率降低以及下游设备的堵塞和污染，合成气中焦油的存在是不希望的。迄今为止，为了有效除去焦油，催化蒸汽重整已被广泛研究。以前的评论文章通过将各种催化剂分类为碱性催化剂，镍基催化剂，非镍基催化剂，碱金属催化剂，沸石催化剂和碳载催化剂等，将重点放在了焦油的催化重整上。重整催化剂由于其高的焦油还原活性，低成本和易于再生而备受关注。然而，由焦炭沉积和金属烧结引起的失活仍然是该技术应用的最大挑战。因此，改性的镍基催化剂现在最常用于焦油的催化重整。目前，很少有评论文章报道了用于焦油化合物的催化重整的Ni基催化剂的改性。在此基础上，综述了焦油催化重整用镍基催化剂的制备，改性和开发方法，旨在提高常规镍基催化剂的催化性能，从高催化活性，长期使用的角度出发。对低分子量化合物的稳定性和更好的选择性。

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