悬浮床加氢尾油气化炭黑的理化性质

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文章编号:1003-9015(2025)04-0732-11

中图分类号:TQ021 文献标志码:A DOI:10.3969/j.issn.1003-9015.2025.04.017

Abstract:Inorder to studythe physicalandchemical properties of soot in slurry-bed hydrogenation tailoil gasification,using elemental analysis,scanning electron microscopy (SEM),transmisson electron microscopy (TEM), X-ray diffraction (XRD),thermogravimetric analysis(TGA),Fourier transform infrared spectroscopy(FT-IR), and X-ray fluorescence spectroscopy (XRF)were used to systematically characterize and analyze soot from suspensionbedhydrogenationtailoil gasification.Theresultsshow thatthecontentoffixedcarbon,volatilemater,and ash in soot are 43.73% , 19.63% ,and 36.64% ,respectively;TheC/Hratio is3.93,whichbelongsto immature soot;Thesurface of soot exhibits collapse,roughness,and random distribution of irrgular small pores.In adition,most soot has a more "hollow" structures;Soot ash exists inthe formof aggregates,with the main components (204号 V205 , Mo03 ,and NiO accounting for 53.33% , 27.13% ,and 12.83% ,respectively. Therefore,soot can be regardedas atarget for vanadium,nickel,andnickel resource recovery;The surface of soot adsorbs soluble organic matter and contains a certain amount of functional groups such as C-O and—OH;The specific surface area and pore volume of soot are only 42.05m2⋅g-1 and 0.13cm3⋅g-1 ,respectively; Soot shows low combustion reactivity ( S= (20 6.9×10-12min-2⋅C-3, ,which may be due to its internal structural characteristics,which hinders the diffsion and adsorption of oxygen molecules on its surface,thus affecting the speed and effciency of combustion reaction.

Key words: soot; slurry-bed hydrogenation;gasification;morphology; oxidation reactivity

1前言

随着人类社会的发展和世界能源消耗的日益增长,如何高效利用重质油(例如渣油)已成为国际关注的焦点[1]。(剩余15283字)

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