蜜勒胺负载二氧化锰的合成及其稠油低温催化氧化性能
Synthesis of Melem-Loaded Manganese Dioxide and Low-Temperature Catalytic Oxidation Performance of Heavy Oil
谭迪琛 1许凯成 1沈熠菲 1熊攀 1程仲富 2马兆菲 1颜学敏1
作者信息
- 1. 长江大学化学与环境工程学院,湖北荆州 434023
- 2. 长江大学化学与环境工程学院,湖北荆州 434023;中国石化西北油田分公司工程技术研究院,新疆乌鲁木齐 830011
- 折叠
摘要
以三聚氰胺在354 ℃下热聚的蜜勒胺(Melem)为含有碳、氮元素的载体,以KMnO4为锰源,通过水热法成功合成了 MnO2/Melem复合材料.采用SEM、TEM、XRD和XPS等方法进行结构表征.并以MnO2/Melem为催化剂,通过调控催化剂用量、氧化剂用量对塔河稠油的催化氧化性能进行考察.结果表明:合成的β-MnO2纳米颗粒成功负载于Melem表面上;通过对稠油催化反应前后的氧化油分别进行族组成分析、FT-IR、GC-MS和黏度测试,确定了催化氧化体系中催化剂用量为1.0％(质量分数),氧化剂选用过氧化氢叔丁醇(TBHP),TBHP用量为0.5％(质量分数);且催化改质后实现了稠油中轻质组分的增加,降黏率可达67.06％.
Abstract
MnO2/Melem composites were successfully synthesized by hydrothermal method using KMnO4 as a manganese source and Melem from Melamine thermally polycondensed at 354 ℃ as a carrier containing carbon and nitrogen elements.SEM,TEM,XRD and XPS were used for structural characterization.Moreover,the catalytic oxidation performance of the Tahe heavy oil was investigated by regulating the catalyst dosage and oxidant dosage with MnO2/Melem as the catalyst.The results show that the synthesized β-MnO2 nanoparticles can be successfully loaded on the surface of Melem.Through group composition analysis,FT-IR,GC-MS and viscosity test of the oxygenated oil before and after the catalytic reacion of heavy oil,it has been determined that the catalyst dosage in the catalytic oxidation system is 1.0％(mass fraction),and the oxidant is selected as tert-butyl hydroperoxide solution(TBHP)with dosage of 0.5％(mass fraction);the catalytic reforming can help achieve an increase of the light fraction in the heavy oil,with the viscosity reduction rate up to 67.06％.
关键词
稠油/催化剂/低温/催化氧化/降黏Key words
heavy oil/catalyst/low temperature/catalytic oxidation/viscosity reduction引用本文复制引用
基金项目
国家自然科学基金项目(52374029)
湖北省重点实验室开发基金项目(202305904)
出版年
2024
NETL
NSTL
万方数据