煤/重油加氢共炼过程中固体残渣的红外光谱研究  

IR STUDY OF SOLID RESIDUES IN CO-PROCESSING OF COAL AND HEAVY OIL

作　　者：秦勇[1] 杨腾飞[1] 李传[1] 邓文安[1] Qin Yong;Yang Tengfei;Li Chuan;Deng Wen’an(State Key Laboratory of Heavy Oil Processing, China University of Petroleum(East China),Qingdao, Shandong 266580)

机构地区：[1]中国石油大学(华东)重质油国家重点实验室,山东青岛266580

出　　处：《石油炼制与化工》2018年第1期48-53,共6页Petroleum Processing and Petrochemicals

基　　金：国家自然科学青年基金项目(21106186);山东省重点研发计划项目(2015GGX107014)

摘　　要：以一种褐煤和催化裂化油浆为研究对象,采用油溶性钼基催化剂,在高压釜内进行煤/重油加氢共炼反应,得到不同反应时间的固体残渣。应用傅里叶变换红外光谱(FT-IR)对固体残渣表征分析,采用Peakfit软件对不同官能团的特定谱带进行分峰拟合,结合产物分布及转化率变化推测反应过程。结果表明,残渣中存在5种氢键类型,其中羟基自缔合氢键含量最高,含氧基团中则是羟基苯和醚含量最高。反应可分为3个阶段:第一阶段煤转化率快速上升,各种基团迅速减少,脂肪链大量断裂;第二阶段为煤转化率稳定阶段,羟基苯、醚继续减少,其它含氧基团变化较小;第三阶段为深度转化阶段,固体残渣的脂肪族和含氧化合物继续减少,氢键缔合作用降到最低,煤转化率进一步上升。The lignite and FCC slurry(FCCS)were co processed in an autoclave using molybdenum naphthenate oil soluble catalyst in H2atmosphare.Solid residues derived from the reaction at different time were obtained and analyzed by Fourier transform infrared spectroscopy(FT IR).The reaction process was speculated by combination of peaks fitting of the specific bands of different functional groups in FT IR spectra using Peakfit software and the conversions and product distribution of different functional groups.Results showed there are five different types of hydrogen bonds in the solid residues,among which the hydrogen bond from hydroxyl association is at most,while the hydrogen bond formed through the association of the phenolic hydroxyl group and ether group in oxygen containing functional groups account the maximum The reaction process can be divided into three stages:in the first stage,the coal conversion raises rapidly,all kinds of the functional groups decreases and the fat chain breaks down a lot;the second stage is the stable phase of coal conversion,in which the amounts of phenolic hydroxyl groups and ether groups reduce,and the other oxygen containing groups change little;in the third stage,the coal conversion reaches much deeper,the content of oxygen containing compounds and aliphatics in solid residues further decreases,resulting in minimized association of hydrogen bonds.

关 键 词：煤/重油共炼 固体残渣 红外光谱 

分 类 号：O657.33[理学—分析化学] TE624[理学—化学]