Mass transfer basis of low-pressure hydrogenation for heavy oil in microinterface-intensified slurry-bed reactor

TIAN Hongzhou; YANG Gaodong; YANG Guoqiang; LUO Huaxun; ZHOU Zheng; MENG Weimin; CAO Yu; LI Lei; ZHANG Feng; YANG Jian; ZHANG Zhibing

doi:10.11949/0438-1157.20200820

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Mass transfer basis of low-pressure hydrogenation for heavy oil in microinterface-intensified slurry-bed reactor

Celebration Column for School of Chemistry and Chemical Engineering\, Nanjing University | 更新时间：2026-07-24

- Mass transfer basis of low-pressure hydrogenation for heavy oil in microinterface-intensified slurry-bed reactor
- CIESC Journal Vol. 71, Issue 11, Pages: 4927-4935(2020)
- 作者机构：
  
  1.南京大学化学化工学院，江苏南京 210023
  2.南京延长反应技术研究院，江苏南京 210047
- 作者简介：
- 基金信息：
- DOI：10.11949/0438-1157.20200820
  CLC： TQ 028.8
- Received：24 June 2020，
  
  Revised：2020-09-04，
  
  Online First：03 November 2020，
  
  Published：05 November 2020
- 稿件说明：
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田洪舟, 杨高东, 杨国强, 罗华勋, 周政, 孟为民, 曹宇, 李磊, 张锋, 杨建, 张志炳. 微界面强化重油浆态床低压加氢的传质基础[J]. 化工学报, 2020, 71(11): 4927-4935

TIAN Hongzhou, YANG Gaodong, YANG Guoqiang, LUO Huaxun, ZHOU Zheng, MENG Weimin, CAO Yu, LI Lei, ZHANG Feng, YANG Jian, ZHANG Zhibing. Mass transfer basis of low-pressure hydrogenation for heavy oil in microinterface-intensified slurry-bed reactor[J]. CIESC Journal, 2020, 71(11): 4927-4935
田洪舟, 杨高东, 杨国强, 罗华勋, 周政, 孟为民, 曹宇, 李磊, 张锋, 杨建, 张志炳. 微界面强化重油浆态床低压加氢的传质基础[J]. 化工学报, 2020, 71(11): 4927-4935 DOI： 10.11949/0438-1157.20200820.

TIAN Hongzhou, YANG Gaodong, YANG Guoqiang, LUO Huaxun, ZHOU Zheng, MENG Weimin, CAO Yu, LI Lei, ZHANG Feng, YANG Jian, ZHANG Zhibing. Mass transfer basis of low-pressure hydrogenation for heavy oil in microinterface-intensified slurry-bed reactor[J]. CIESC Journal, 2020, 71(11): 4927-4935 DOI： 10.11949/0438-1157.20200820.

摘要

每年将数亿吨重油加工成轻质馏分或化工原料关系到我国国家能源安全和能源资源的高效利用。然而传统的重油浆态床加氢反应器（TSR）一般都是在高压下运行，这会产生一系列负面影响。本文发展了一种新的加氢方法——微界面强化浆态床加氢反应器（MISR），构建了MISR中气泡Sauter平

均直径

和气-液相界面积

以及能量耗散率

数学模型，并建立了冷模模拟实验体系

和

的测试系统。理论计算结果表明，MISR中氢气传质速率远大于TSRs，这为MISR中重油高效、低压加氢提供了理论依据。实验研究表明，在实际操作条件下，当气液比（氢/油）从10变化到150时，MISR中

在220~420 µm范围内。与高压操作下的TSRs相比，MISR内气液界面面积和氢传质速率分别提高了20～100倍和20～50倍。分析显示，

和

的理论计算结果与实测值的误差均在15%以内。

Abstract

The processing of hundreds of millions of tons of heavy oil into light distillates or chemical raw materials every year is related to Chinese national energy security and efficient use of energy resources. However

the traditional slurry-bed reactor (TSRs) for heavy oil hydrogenation is generally operated at very high pressure which causes a series of negative effects. Herein a new hydrogenation method called microinterface-intensified slurry-bed reactor (MISR) was developed for the low-pressure hydrogenation. The mathematical models regarding bubble Sauter mean diameter

and gas-liquid interfacial area

as well as energy dissipation rate

in the MISR were proposed for predicting

and

. Also a cold-mode simulated experimental system was set up for the measurement of

and

. Theoretical results showed that the mass transfer rate of hydrogen and its amount from gas phase into liquid phase in the MISR are much bigger than those in the TSR

which provides a theoretical basis for the efficient and low-pressure hydrogenation of heavy oil in the MISR. Experimental study displayed that

in the MISR is in the range of 220 — 420 µm when the gas-liquid ratio (hydrogen/oil) changes from 10 to 150 in the practical operation conditions. Compared with TSR under high pressure operation

the gas-liquid interface area and hydrogen mass transfer rate

in MISR are increased by 20 —100 times and 20 —50 times

respectively. Analysis shows that the errors between the theoretical calculation results of

and

and the actual measured values are both within 15%.

关键词

Keywords

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