Waste Management ( IF 8.1 ) Pub Date : 2020-06-11 , DOI: 10.1016/j.wasman.2020.06.004 Se-Won Park 1 , Yong-Chil Seo 2 , Sang-Yeop Lee 2 , Won-Seok Yang 3 , Jong-Hyeog Oh 4 , Jae-Hoi Gu 5
An 8 ton/day solid refuse fuel gasification process with air oxidant was operated under various conditions to generate electricity. Solid refuse fuels with fluff type feedstock were fabricated from municipal solid wastes. The tested experimental conditions included feedstock charging rate into the gasifier, equivalence ratio, and oxygen enrichment; varying these conditions resulted in different gasification characteristics, such as cold gas efficiency and carbon conversion ratio. Optimum conditions were a charging rate of 50 to 60% by volume (504.71 to 605.65 kg/Sm2) of feedstock in the gasifier, equivalence ratio of 0.21 to 0.33, and no oxygen enrichment. Average cold gas efficiency and carbon conversion ratio were 71.30% and 72.07%, respectively, at optimum conditions. Pollutants such as dust, tar, and gases, were analyzed at the outlet of the cleaning facility and gasifier, and their low concentrations in the producer gas were sufficient to allow for operation of the gas engine. The gasification process exhibited stable operation over 288 h, which included the facility check period. The average gasifier temperature was 825 °C, 17.14% by volume of producer gas was syngas, and gas engine power generation was 235 kWh during this period; power consumption of the entire system was 68 kWh. These results demonstrate that the gasification process for converting solid waste to energy can be operated at a commercial scale.
中文翻译:
开发了8吨/天的气化工艺,以使用燃气发动机发电的固体垃圾燃料发电。
在各种条件下运行了8吨/天的带有空气氧化剂的固体垃圾燃料气化工艺,以发电。具有绒毛状原料的固体垃圾燃料是由城市固体废物制成的。测试的实验条件包括气化炉中进料速率,当量比和氧气富集。改变这些条件会导致不同的气化特性,例如冷气效率和碳转化率。最佳条件是充电率为体积的50%至60%(504.71至605.65 kg / Sm 2)气化炉中的原料,当量比为0.21至0.33,并且没有氧气富集。在最佳条件下,平均冷气效率和碳转化率分别为71.30%和72.07%。在清洁设施和气化炉的出口处分析了诸如灰尘,焦油和气体之类的污染物,其在生产气体中的低浓度足以使燃气发动机运转。气化过程在288小时内表现出稳定的运行状态,其中包括设施检查期。在此期间,气化炉的平均温度为825°C,生产气的体积比为17.14%,合成气,燃气发动机的发电量为235 kWh;整个系统的功耗为68 kWh。