In order to produce cheap activation carbon for dioxin adsorption in waste incinerator, waste plywood, pinewood, and coconut shell were used as raw materials to produce activated carbon via steam gasification on a lab-scaled rotary reactor. The influence of temperature, steam flow rate, and activation time on activated carbon yield and properties was investigated. Experimental results show that at 800 years, with 30-min activation time and steam/char ratio equal to 2, the yield of plywood activated carbon reached 60.5%, which was much higher than pinewood. The iodine adsorption value was 943 mg/g, which is close to pinewood. The pore structure analysis results show that the activated carbon derived from pinewood and plywood is similar. The pores with diameter of 2–5 nm were well developed, which was suitable for dioxin adsorption in waste incinerator. In the end, the computational fluid dynamics (CFD) and discrete element method (DEM) were used for modeling and optimization of the rotary furnace. Calculation results show that internal friction between the particles or the degree of anisotropy of the particles will cause the particles in the furnace to form a larger accumulation inclination, which benefits the mixing of the material in furnace. The results show that both the Eulerian-Eulerian two-fluid method and the DEM can simulate the movement of particles in the rotary furnace.

The activated carbon produced by steam gasification for dioxin adsorption.

为了生产廉价的活性炭用于废物焚烧炉中的二恶英吸附，废胶合板，松木和椰子壳被用作原料，在实验室规模的旋转反应器上通过蒸汽气化生产活性炭。研究了温度，蒸汽流量和活化时间对活性炭收率和性能的影响。实验结果表明，在800年的时间里，活化时间为30分钟，蒸汽/炭比等于2，胶合板活性炭的收率达到60.5％，远高于松木。碘的吸附值为943 mg / g，接近松木。孔隙结构分析结果表明，松木和胶合板的活性炭相似。直径2–5 nm的孔发达，适用于垃圾焚烧炉中二恶英的吸附。最后，将计算流体动力学（CFD）和离散元方法（DEM）用于旋转炉的建模和优化。计算结果表明，颗粒之间的内部摩擦或颗粒的各向异性程度将导致炉内颗粒形成较大的堆积倾角，有利于炉内物料的混合。结果表明，欧拉-欧拉二流体方法和DEM都可以模拟旋转炉中颗粒的运动。计算结果表明，颗粒之间的内部摩擦或颗粒的各向异性程度将导致炉内颗粒形成较大的堆积倾角，有利于炉内物料的混合。结果表明，欧拉-欧拉二流体方法和DEM都可以模拟旋转炉中颗粒的运动。计算结果表明，颗粒之间的内部摩擦或颗粒的各向异性程度将导致炉内颗粒形成较大的堆积倾角，有利于炉内物料的混合。结果表明，欧拉-欧拉二流体方法和DEM都可以模拟旋转炉中颗粒的运动。

蒸汽气化产生的活性炭用于二恶英吸附。