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Catalytic fast Co-Pyrolysis of sewage sludge−sawdust using mixed metal oxides modified with ZSM-5 catalysts on dual-catalysts for product upgrading
Journal of the Energy Institute ( IF 5.7 ) Pub Date : 2020-10-04 , DOI: 10.1016/j.joei.2020.10.005
Nurul Afiqah Haji Morni , Chun Mo Yeung , Hong Tian , Yang Yang , Neeranuch Phusunti , Muhammad Saifullah Abu Bakar , Abul Kalam Azad

Catalytic fast co-pyrolysis of sewage sludge and sawdust was performed using Py/GC-MS for pyrolytic product upgrades. Metal oxides (NiO and MoO3) and ZSM-5 catalysts had been introduced into single catalytic pyrolysis. The combination of NiO + MoO3 in mixed metal oxides (MMOs) was modified with ZSM-5 under a dual-catalyst with different catalytic layouts. In the pyrolysis process, the metal oxides specifically promoted the formation of phenols, ketones, and furans. ZSM-5 was proven to be more effective in producing aromatic hydrocarbons and phenols and in reducing the oxygenated compounds. The combination of MMOs with ZSM-5 effectively improved product distribution by increasing the production of aromatics and phenols. MMOs promoted the aromatics selectivity of undesirable PAHs (70.5%), however, the addition of ZSM-5 to MMOs appeared to reduce and inhibit the formation of PAHs by 0.85%. The highest yield of aromatics was obtained by the layout of the ZSM-5/MMO dual catalysts layout which was 21.6%. Dual catalysts of MMOs and ZSM-5 in separated layout created promising effects in further increasing the production of aromatic hydrocarbons and phenols compared to the mixture of MMOs modified ZSM-5.



中文翻译:

在双催化剂上使用ZSM-5催化剂改性的混合金属氧化物催化快速共热解污泥-木屑

使用Py / GC-MS对污水污泥和锯末进行催化快速共热解,以进行热解产物升级。金属氧化物(NiO和MoO 3)和ZSM-5催化剂已被引入单催化热解中。NiO + MoO 3的组合在具有不同催化布局的双催化剂下,用ZSM-5修饰了混合金属氧化物(MMO)中的MMO。在热解过程中,金属氧化物特别促进了酚,酮和呋喃的形成。事实证明,ZSM-5在生产芳烃和酚以及还原含氧化合物方面更有效。MMO与ZSM-5的结合可通过增加芳族化合物和苯酚的产量有效地改善产品分配。MMO促进了不良PAHs(70.5%)的芳烃选择性,但是,向MMO中添加ZSM-5似乎减少了0.85%的PAHs并抑制了PAHs的形成。通过ZSM-5 / MMO双催化剂布局的布置,芳烃的最高收率为21.6%。

更新日期:2020-10-05
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