State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao 266580, China.
Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264000, China.
Bioresour Technol. 2019 Jul;283:96-105. doi: 10.1016/j.biortech.2019.02.097. Epub 2019 Feb 21.
This study aimed at investigating fast pyrolysis behavior and products distribution of two typical coastal zone biomass fuels (Jerusalem artichoke stalk (JAS) and reeds (Re) by TGA and a homemade down tube reactor. The kinetic analysis with different ramping rates was conducted by FWO and DAEM models. The liquid, gaseous and solid products are characterized to study the influence of temperature. Results indicate that high heating rates may be overcome some resistances to mass or heat transfer inside the particles of biomass, and lead to a higher conversion rates and Re species is preferable to JAs in terms of thermochemical conversion because of the lower apparent activation energy for total conversion. Moreover, the pyrolysis conditions - temperature under fast pyrolysis in a down tube pyrolysis unit will make the covalent bonds in the biomass degradation more rapidly, gave significant influence on the yields and properties of liquid, gaseous and solid products.
本研究旨在通过热重分析（TGA）和自制的下管反应器，研究两种典型沿海生物质燃料（菊芋秸秆（JAS）和芦苇（Re）的快速热解行为和产物分布。通过 FWO 和 DAEM 模型对不同升温速率进行了动力学分析。对液体、气体和固体产物进行了表征，以研究温度的影响。结果表明，较高的升温速率可能克服了生物质颗粒内部传质或传热的一些阻力，导致更高的转化率，而 Re 物种在热化学转化方面优于 JAs，因为总转化率的表观活化能较低。此外，热解条件-在下管热解单元中进行快速热解的温度会使生物质中键的降解更快，对液体、气体和固体产物的产率和性质产生显著影响。
