Sricharoenchaikul V, Hicks A L, Frederick W J
School of Chemical Engineering, Georgia Institute of Technology, 778 Atlantic Drive NW, Atlanta, GA 30332, USA.
Bioresour Technol. 2001 Apr;77(2):131-8. doi: 10.1016/s0960-8524(00)00155-3.
The yields of char residue, fixed carbon, and inorganic carbonate were measured for oxidized black liquor char residues produced in a laboratory laminar entrained-flow reactor (LEFR) at heating rates of 4000-13,000 degrees C/s. The char residue yields at the end of devolatilization thus obtained decreased nearly linearly with temperature, from 75% at 700 degrees C to 58% at 1100 degrees C. There were explainable differences in the char residue yields from the liquor used in this study and those used in other studies. Char residue yields seemed to depend mainly on the temperature to which the particles or droplets were exposed and were not very sensitive to heating rate. Fixed carbon yields behaved similarly to those of the char residue. The fixed carbon remaining at the end of devolatilization decreased from 67% at 700 degrees C to about 45% at 1100 degrees C. The carbonate content in black liquor changed very little before and after devolatilization.
在实验室层流携带流反应器（LEFR）中，以4000 - 13000℃/s的加热速率测量了氧化黑液炭渣的炭渣产率、固定碳产率和无机碳酸盐产率。由此获得的热解结束时的炭渣产率随温度几乎呈线性下降，从700℃时的75%降至1100℃时的58%。本研究中使用的黑液的炭渣产率与其他研究中使用的黑液的炭渣产率存在可解释的差异。炭渣产率似乎主要取决于颗粒或液滴所暴露的温度，对加热速率不太敏感。固定碳产率的表现与炭渣产率类似。热解结束时剩余的固定碳从700℃时的67%降至1100℃时的约45%。黑液中的碳酸盐含量在热解前后变化很小。
