This paper investigated pyrolysis of palm kernel shell in a proposed reactor, which is characterized by internal recycling of heavy oil between a heavy oil sorption zone and pyrolysis zone. The internal recycling of heavy oil favors conversion of heavy oil to char, gas, and light oil. Compared with the product distribution from the conventional pyrolysis without heavy oil recycling, the yields of char, gas, and GC/MS detectable organic compounds increase from 34.8, 15.2, and 9.8 wt%-(dry feedstock) to 38.5, 19.0, and 16.9 wt%-(dry feedstock), respectively, with the help of internal recycling of heavy oil. The increases in the char and gas yields are interestingly found to be nearly equivalent. Furthermore, the yields of acetic acid and phenol in the resulting bio-oil can be as high as 10.1 and 2.7 wt%-(dry feedstock), and the outputs of 2-methylfuran, 2,6-dimethoxyphenol, and H₂ are increased by around 37, 7, and 4 times, respectively.

本文研究了拟议的反应器中棕榈仁壳的热解，其特征是重油在吸收区和热解区之间的内部循环利用。内部重油回收有利于将重油转化为焦油，天然气和轻油。与不进行重油循环的常规热解产物分布相比，炭，气和GC / MS可检测到的有机化合物的产率从34.8％，15.2％和9.8wt％（干原料）增加到38.5％，19.0％和16.9％ wt％-（干原料），分别借助内部重油回收。有趣的是，发现焦炭和气体收率的增加几乎是相等的。此外，所得生物油中乙酸和苯酚的收率可能高达10.1和2.7 wt％-（干原料），₂分别增加了约37、7和4倍。