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Deep oxidative desulfurization catalyzed by (NH₄)ₓH₄₋ₓPMo₁₁VO₄₀ (x = 1, 2, 3, 4) using O₂ as an oxidant

Author:
Liao, Xiaoyuan, Wu, Di, Geng, Baoyin, Lu, Shuxiang, Yao, Yue
Source:
RSC advances 2017 v.7 no.76 pp. 48454-48460
ISSN:
2046-2069
Subject:
ammonium, ammonium compounds, catalysts, desulfurization, fuel oils, oxidants, oxygen, temperature
Abstract:
NH₄⁺ doped PMoV composites catalytic materials are successfully prepared. The NH₄⁺ doped H₄PMo₁₁VO₄₀ composites have been tested as highly efficient catalysts in the ultra-deep desulfurization of fuel oils. The reaction conditions are optimized by testing the load of NH₄⁺, temperature, O₂ flow velocity, and DBT concentrations. The optimal reaction conditions are given as follows: 0.1 g (NH₄)₃HPMo₁₁VO₄₀ as catalyst, reaction time 2 h, O₂ flow velocity 100 mL min⁻¹, and reaction temperature 120 °C, with a conversion of DBT reaching up to 100% in 90 min, and this catalyst could be used more than five times without significant loss of activity.
Agid:
6421378