FLASH PYROLYSIS OF BROWN COAL FOR OBTAINING LIQUID AND GASEOUS HYDROCARBONS(Ⅲ) EFFECT OF GAS RESIDENCE TIME

朱子彬; 马智华; 俞丰; 张成芳; 王欣荣

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FLASH PYROLYSIS OF BROWN COAL FOR OBTAINING LIQUID AND GASEOUS HYDROCARBONS(Ⅲ) EFFECT OF GAS RESIDENCE TIME

更新时间：2025-12-16

- FLASH PYROLYSIS OF BROWN COAL FOR OBTAINING LIQUID AND GASEOUS HYDROCARBONS(Ⅲ) EFFECT OF GAS RESIDENCE TIME
- CIESC Journal Issue 6, (1995)
- 作者机构：
  
  华东理工大学无机化工研究所!上海200237,华东理工大学无机化工研究所!上海200237,华东理工大学无机化工研究所!上海200237,华东理工大学无机化工研究所!上海200237,广西柳州东风化工厂
- 作者简介：
- 基金信息：
- DOI：
  CLC： Q021
- Online First：25 December 1995，
  
  Published：25 December 1995
- 稿件说明：
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朱子彬, 马智华, 俞丰, et al. FLASH PYROLYSIS OF BROWN COAL FOR OBTAINING LIQUID AND GASEOUS HYDROCARBONS(Ⅲ) EFFECT OF GAS RESIDENCE TIME[J]. CIESC Journal, 1995, (6).
DOI：

朱子彬, 马智华, 俞丰, et al. FLASH PYROLYSIS OF BROWN COAL FOR OBTAINING LIQUID AND GASEOUS HYDROCARBONS(Ⅲ) EFFECT OF GAS RESIDENCE TIME[J]. CIESC Journal, 1995, (6). DOI：

摘要

用内蒙扎赉诺尔褐煤在气流床反应器中进行快速加氢热解的研究.在6.OMPa、700℃、氢气载气在反应器内的停留时间为7～71s范围内

总生成物产率随停留时间增加而提高

停留时间达42s时

液态轻质芳烃(三苯+三酚)出现最大值达13.5%

比短停留时间的产率增加了1.6倍;71s时

气态和气、液态生成物总产率分别为31.6%和42.1%.随气体停留时间的增加

气态和液态轻质芳烃产率的提高与焦油量的减少和半焦中残留挥发分的降低有密切关系.在快速热解过程中

加氢二次反应不可避免

且对气、液生成物的产率和产物分布有重要影响.载气停留时间是控制二次反应的重要手段.

Abstract

The flash hydropyrolysis (FHP) of Zalannoer brown coal of Inner Mongolia is carried out in an experimental entrained reactor. The total yield of products increase with the gas residence time (GRT) at 6. OMPa of hydrogen pressure and 700℃ of temperature and a range of 7-71 s GRT. When GRT is 42 s

the yield of hydrocarbon liquid (HCL) is a maximum of 13. 5% which is 1. 5 times more than that at a short GRT(2 s). The yield of gaseous products and total yield (gaseous products+HCL) are 31. 6% and 42. 1% respectively when GRT is 71 s. It is found that the increase of yields of gaseous products and HCL is closely related to the decrease of tar and volatile matter of char. During the process of FHP

secondary reaction of gaseous is unavoidable and it has an important effect on yields and distribution of gaseous and liquid products. The GRT plays an important role in controlling the secondary reaction.

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