Study on the Catalytic Reforming Law of Solid-Phase Carbon and Nitrogen Sources Loaded with MnO_(2)at Low Temperatures in Tahe Heavy Oil  

作　　者：Tan Dichen Ma Zhaofei Peng Gaoyao Xiong Pan Yan Xuemin 

机构地区：[1]College of Chemistry and Environmental Engineering,Yangtze University,Jingzhou,Hubei 434023,PR China

出　　处：《China Petroleum Processing & Petrochemical Technology》2023年第4期52-60,共9页中国炼油与石油化工（英文版）

基　　金：supported by the National Natural Science Foundation of China (51472034);the Key Laboratory Development Fund of Hubei Province (202305904);the Cooperation Project of Petro China Tahe Oilfield Company (2021H10005)。

摘　　要：MnO_(2)/Melem composites were synthesized with MnO_(2)nanoparticles loaded onto the Melem using the hydrothermal method.As raw materials for C and N carriers,Melem was prepared from melamine roasted at 354℃,and KMnO_(4)as a raw material for Mn,MnO_(2)nanoparticles were prepared using the hydrothermal synthesis of KMnO_(4).Scanning electron microscopy(SEM),transmission electron microscopy(TEM),X-ray diffraction(XRD),and a laser particle size analyzer were used for structural characterization,and the catalytic oxidation performance of the heavy oil was investigated at different reaction temperatures(100℃to 180℃)using MnO_(2)/Melem with an oxidant and donor protonic acid.The results showed that the synthesizedβ-MnO_(2)nanoparticles were successfully loaded onto the Melem surface;the oil samples before and after the reaction at different temperatures were subjected to SARA analysis using Fourier transform infrared(FT-IR),elemental analysis,gas chromatography-mass spectrometry(GC-MS)and viscosity tests,respectively.It was determined that the hydrocarbons in the crude oil were converted to heavy mass by oxidation reactions with the oxidant mainly through a low-temperature oxidation process below 140℃in the heavy oil when the temperature exceeds 140℃,in addition to the oxidation reaction with the oxidant,a cleavage reaction in the carbon chain occurs to form hydrocarbon substances with lower molecular weights.

关 键 词：heavy oil catalyst low-temperature catalytic oxidation in situ reforming 

分 类 号：TE624.4[石油与天然气工程—油气加工工程]