School of Mechanical Engineering, Universiti Sains Malaysia, Engineering Campus, 14300 Nibong Tebal, Penang, Malaysia.
Bioresour Technol. 2013 May;136:117-25. doi: 10.1016/j.biortech.2013.02.049. Epub 2013 Feb 24.
A new effective RF tar thermocatalytic treatment process with low energy intensive has been proposed to remove tar from biomass gasification. Toluene and naphthalene as biomass tar model compounds were removed via both thermal and catalytic treatment over a wide temperature range from 850 °C to 1200 °C and 450 °C to 900 °C, respectively at residence time of 0-0.7 s. Thermal characteristics of the new technique are also described in this paper. This study clearly clarified that toluene was much easier to be removed than naphthalene. Soot was found as the final product of thermal treatment of the tar model and completely removed during catalytic treatment. Radical reactions generated by RF non-thermal effect improve the tar removal. The study showed that Y-zeolite has better catalytic activity compared to dolomite on toluene and naphthalene removal due to its acidic nature and large surface area, even at lower reaction temperature of about 550 °C.
一种新的有效 RF 焦油热催化处理工艺，具有低能耗，已被提议用于从生物质气化中去除焦油。通过在较宽的温度范围内（850°C 至 1200°C 和 450°C 至 900°C）进行热催化处理，以及在停留时间为 0 至 0.7 秒的情况下，分别去除了甲苯和萘作为生物质焦油模型化合物。本文还描述了该新技术的热特性。本研究清楚地表明，甲苯比萘更容易去除。在焦油模型的热处理过程中发现了烟灰，它在催化处理过程中被完全去除。RF 非热效应产生的自由基反应提高了焦油的去除率。研究表明，由于其酸性和较大的表面积，与白云石相比，Y 型沸石在甲苯和萘的去除方面具有更好的催化活性，即使在约 550°C 的较低反应温度下也是如此。
