Characteristics of tar formation during catalytic reforming of pyrolysis volatile from pine saw dust over novel Ni-based magnesium slag catalyst

LIU Yang; LIU Jiecheng; YU Haimiao; CHEN Dezhen

doi:10.11949/0438-1157.20190269

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Characteristics of tar formation during catalytic reforming of pyrolysis volatile from pine saw dust over novel Ni-based magnesium slag catalyst

更新时间：2026-07-24

- Characteristics of tar formation during catalytic reforming of pyrolysis volatile from pine saw dust over novel Ni-based magnesium slag catalyst
- CIESC Journal Vol. 70, Issue 8, Pages: 2991-2999(2019)
- 作者机构：
  
  同济大学机械与能源工程学院，上海 200092
- 作者简介：
- 基金信息：
- DOI：10.11949/0438-1157.20190269
  CLC： TK 6
- Received：21 March 2019，
  
  Revised：2019-06-03，
  
  Online First：24 July 2026，
  
  Published：05 August 2019
- 稿件说明：
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刘阳, 刘捷成, 俞海淼, 陈德珍. 新型镍基镁渣催化重整松木热解挥发分焦油析出特性研究[J]. 化工学报, 2019, 70(8): 2991-2999

LIU Yang, LIU Jiecheng, YU Haimiao, CHEN Dezhen. Characteristics of tar formation during catalytic reforming of pyrolysis volatile from pine saw dust over novel Ni-based magnesium slag catalyst[J]. CIESC Journal, 2019, 70(8): 2991-2999
刘阳, 刘捷成, 俞海淼, 陈德珍. 新型镍基镁渣催化重整松木热解挥发分焦油析出特性研究[J]. 化工学报, 2019, 70(8): 2991-2999 DOI： 10.11949/0438-1157.20190269.

LIU Yang, LIU Jiecheng, YU Haimiao, CHEN Dezhen. Characteristics of tar formation during catalytic reforming of pyrolysis volatile from pine saw dust over novel Ni-based magnesium slag catalyst[J]. CIESC Journal, 2019, 70(8): 2991-2999 DOI： 10.11949/0438-1157.20190269.

摘要

采用过量浸渍法制备了镍基镁渣催化剂，并在小型气流床气化炉上开展了松木热解挥发分的催化重整研究。评估了煅烧/催化温度、镍含量和水碳比对焦油组分的影响，同时在不同煅烧/催化温度下与Ni/γ-Al

催化剂进行了裂解焦油性能的对比。采用比表面积测试（BET）、X射线衍射（XRD）、扫描电镜（SEM）和透射电镜（TEM）对催化剂进行了表征。结果表明，当镍含量为3%，煅烧/催化温度为800℃，水碳比为0.5时，镍基镁渣催化剂表现出最优异的催化裂解焦油能力：大幅度降低了重质多环芳烃的相对含量，并且焦油转化率达到95.69%，同时焦油露点温度降至40.2℃。XRD结果表明，Ni、Fe、Ca、Mg相互作用可以形成多种活性中心，进而协同提高催化剂活性。

Abstract

The nickel-based magnesium slag catalyst was prepared by excess impregnation method

and the catalytic reforming of pine pyrolysis volatiles was carried out on a small entrained flow gasifier. The effects of calcination/catalytic temperature

Ni content and steam to carbon (S/C) ratio on the catalytic performance were investigated. Moreover

the tar creaking capability of Ni/MS catalyst and Ni/γ-Al

catalyst were explored under different calcination/catalytic temperatures. The catalysts were characterized by BET

XRD

SEM and TEM. The results indicated that the best tar conversion (95.69%) and the significant reduction in the relative content of heavy PAHs as well as the tar dew point of 40.2℃ were obtained over Ni/MS catalyst under the conditions of Ni content 3%

calcination/catalytic temperature 800℃

S/C = 0.5. Results from XRD showed that the interactions of Ni

and Mg formed multiple active centers to display synergistic catalytic effects

thereby jointly promoting catalyst activity.

关键词

Keywords

references

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