催化作用
草酸
化学
分解
氢
开裂
无机化学
有机化学
作者
Sen Liu,Xiaodong Wang,Haofei Zhou,Qiuye Li,Jianjun Yang
出处
期刊:Fuel
[Elsevier]
日期:2024-02-01
卷期号:357: 130050-130050
标识
DOI:10.1016/j.fuel.2023.130050
摘要
In this paper, Cu/FeOx composite catalysts were successfully synthesized by a hydrothermal method followed by a hydrogen gas reduction and were used as the catalysts for the cracking of heavy crude oil and the simultaneous low-temperature water–gas swift (LTWGS) reaction. Oxalic acid was used to generate the reactants (i.e., CO and H2O) of LTWGS reaction in-situ through its decomposition under the reaction temperature (200 ℃) of the heavy crude oil cracking. Cu0 in Cu/FeOx acted as a catalyst of the LTWGS reaction (CO + H2O ↔ CO2 + H2) and α-Fe2O3 in Cu/FeOx acted as a catalyst for the cracking of heavy crude oil. In-situ H2 coming from the LTWGS reaction promoted the catalytic viscosity reduction rate of heavy crude oil via inhibiting the radicals from recombining. This work gives a new, economical and efficient approach to supplying H2 for heavy crude oil upgrading through the in-situ LTWGS reaction of the decomposition products of oxalic acid.
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