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FCC油浆富芳烃抽出油组成分析

冯祎 孙昱东 张帅

冯祎, 孙昱东, 张帅. FCC油浆富芳烃抽出油组成分析[J]. 燃料化学学报. doi: 10.1016/S1872-5813(21)60027-0
引用本文: 冯祎, 孙昱东, 张帅. FCC油浆富芳烃抽出油组成分析[J]. 燃料化学学报. doi: 10.1016/S1872-5813(21)60027-0
Feng Yi, Sun Yu-dong, Zhang Shuai. Analysis of aromatics-rich extraction oil composition of FCC slurry[J]. Journal of Fuel Chemistry and Technology. doi: 10.1016/S1872-5813(21)60027-0
Citation: Feng Yi, Sun Yu-dong, Zhang Shuai. Analysis of aromatics-rich extraction oil composition of FCC slurry[J]. Journal of Fuel Chemistry and Technology. doi: 10.1016/S1872-5813(21)60027-0

FCC油浆富芳烃抽出油组成分析

doi: 10.1016/S1872-5813(21)60027-0
详细信息
    作者简介:

    冯祎:972684241@qq.com

    通讯作者:

    Tel:0532-86980605;E-mail:ydsun@upc.edu.cn

  • 中图分类号: TE624.5

Analysis of aromatics-rich extraction oil composition of FCC slurry

  • 摘要: 以中间基属FCC油浆的抽出油为原料,采用实沸点减压蒸馏切割为每20 ℃一个窄馏分,采用密度、残炭、运动黏度等基本物性分析结果,结合元素分析、核磁共振波谱以及全二维气相色谱/飞行时间质谱等考察了窄馏分中芳烃组成和结构的变化。结果表明,随着沸点升高,窄馏分的密度、残炭、运动黏度呈现递增趋势,420 ℃后变化尤为明显;440 ℃之前窄馏分中的芳烃主要以三、四环为主,其后五环芳烃含量急剧增加;FCC油浆中的芳烃具有较高的缩合度且芳环上仅含有少量较短的烷基侧链;油浆窄馏分中的杂原子化合物主要以硫化物和氧化物为主,氮化物和卤化物含量较低。
  • 图  1  抽出油实沸点蒸馏曲线

    Figure  1.  True boiling point distillation curve of extracted oil

    图  2  抽出油窄馏分芳烃组成

    Figure  2.  Aromatic composition of narrow fractions

    图  3  抽出油窄馏分杂原子化合物分布

    Figure  3.  Distribution of heteroatomic compounds of narrow fractions

    表  1  原料基本性质

    Table  1.   Main properties of FCC slurry

    ρ20/(kg·m−3)Mω(carbon residue)/%ν100/(mm2·s−1)ω(SARA)/%
    SaturatesAromaticsResinsAsphaltenes
    1120.203438.4314.0818.7772.376.062.80
    下载: 导出CSV

    表  2  窄馏分收率分布

    Table  2.   Narrow fraction yield distribution

    IBP~380 ℃380~400 ℃400~420 ℃420~440 ℃440~460 ℃460~480 ℃480 ℃~FBP
    5.6727.5920.2515.078.896.6915.08
    下载: 导出CSV

    表  3  原料及产物性质检测方法

    Table  3.   Standards of testing methods of feedstock and products

    NumberAnalysis itemMethod of analysis
    1ρ20/(kg·m-3)GB/T 2540-1981
    2MSH/T 0583-1994
    3ω(carbon residue)/%GB/T 17144-1997
    4ν100/(mm2·s-1)GB/T 11137-1989
    下载: 导出CSV

    表  4  窄馏分物性变化

    Table  4.   Physical properties of narrow fractions

    Fractionρ20/(kg·m-3)ω(carbon residue)/%ν100/(mm2·s-1)
    360~380 ℃1.10080.123.63
    380~400 ℃1.10120.135.53
    400~420 ℃1.10660.258.07
    420~440 ℃1.11690.7010.30
    440~460 ℃1.12682.6518.10
    460~480 ℃1.12947.4738.43
    480~500 ℃1.185016.0181.44
    500 ℃~FBP1.225025.28132.50
    下载: 导出CSV

    表  5  C、H、S、N元素分析及VPO分子量

    Table  5.   Element analysis of C、H、S、N and molecular weight

    Fractionn(H)/n(C)ω(H)/%ω(C)/%ω(S)/%ω(N)/%M
    360~380 ℃0.896.8890.612.170.10208
    380~400 ℃0.876.6191.382.000.07256
    400~420 ℃0.866.5991.761.860.06263
    420~440 ℃0.826.2491.901.820.05291
    440~460 ℃0.826.2791.781.720.06313
    460~480 ℃0.806.0590.361.510.07325
    480~500 ℃0.796.0592.121.440.05334
    500 ℃~FBP0.745.6792.661.060.05
    下载: 导出CSV

    表  6  窄馏分中不同化学位移氢的含量

    Table  6.   Hydrogen content of different chemical shift in narrow fractions

    FractionHγ/%Hβ/%Hα/%HA/%
    IBP~380 ℃0.7311.3543.6344.28
    380~400 ℃0.8910.9843.3044.83
    400~420 ℃0.8210.1243.2245.84
    420~440 ℃0.649.4843.8346.05
    440~460 ℃0.619.3443.6446.41
    460~480 ℃0.719.5841.6148.11
    480~500 ℃0.538.8441.5949.04
    下载: 导出CSV

    表  7  窄馏分核磁共振H谱结构参数

    Table  7.   Structural parameters of narrow fractions by 1H-NMR

    FractionCTHTRARTRNfafNfPσHAU/CA
    IBP~380 ℃15.6914.202.573.741.170.750.220.030.330.80
    380~400 ℃19.4816.793.604.681.070.760.170.070.330.75
    400~420 ℃20.0817.203.804.790.990.770.150.090.320.75
    420~440 ℃22.2718.024.465.571.120.780.150.070.320.70
    440~460 ℃23.9019.474.885.840.960.780.120.100.320.71
    460~480 ℃24.4519.515.126.020.900.790.110.100.300.69
    480~500 ℃25.6220.025.496.360.870.800.100.100.300.68
    下载: 导出CSV

    表  8  窄馏分中不同化学位移碳的含量

    Table  8.   Carbon content of different chemical shift in narrow fractions

    Fractionfa/%faH/%faB/%faS/%faO/%faC/%fal/%falA/%falB/%falH/%falO/%
    360~380 ℃80.2461.2515.483.510019.7611.762.335.590.08
    380~400 ℃80.0557.6117.664.790019.9512.312.445.200
    400~420 ℃81.8456.3018.685.910.670.2918.1511.452.144.520.03
    420~440 ℃80.8555.0519.585.880.34019.1511.982.454.720
    440~460 ℃80.8557.0618.774.670.130.2119.1511.592.435.130
    460~480 ℃84.3756.1420.376.691.18015.6310.602.232.800
    480~500 ℃83.4473.457.69002.3116.567.180.868.470
    注:fa-芳碳分率;faH-质子芳碳分率;faB-桥头芳碳分率;faS-侧枝芳碳分率;faO-氧接芳碳分率;faC-羰基芳碳分率;fal-饱和碳分率;falA-脂甲基碳分率;falB-芳环甲基碳分率;falH-亚甲基、次甲基碳分率;falO-氧接饱和碳分率
    下载: 导出CSV
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  • 网络出版日期:  2021-03-30

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