CAJ | 학술논문

在小型流化床实验装置(φ50 mm、高1.6 m)上,考察了温度对沛城煤矿天然焦蒸汽气化产气量、碳转化率、煤气热值和煤气组分的影响,并与ASPEN PLUS模拟结果进行了对比.实验结果表明:反应温度是影响气化反应的主要因素,温度升高,煤气组分中H2和CO_2含量下降,CO含量增加;当气化反应温度从850 ℃提高到1 000 ℃,碳转化率从10.25%提高到47.76%,产气量增加了4.3倍;H2和CO_2的含量由63.0%和25.0%减少到59.8%和20.2%,CO含量由9.6%增加到18.5%;煤气热值从8.87 MJ/m~3增加到了9.33 MJ/m~3.应用ASPEN PLUS软件模拟天然焦-蒸汽气化反应过程,同时考虑碳转化率,其模拟结果与实验数据接近,误差在可接受范围内,因此ASPEN PLUS模拟对系统设计与优化具有参考意义.
재소형류화상실험장치(φ50 mm、고1.6 m)상,고찰료온도대패성매광천연초증기기화산기량、탄전화솔、매기열치화매기조분적영향,병여ASPEN PLUS모의결과진행료대비.실험결과표명:반응온도시영향기화반응적주요인소,온도승고,매기조분중H2화CO_2함량하강,CO함량증가;당기화반응온도종850 ℃제고도1 000 ℃,탄전화솔종10.25%제고도47.76%,산기량증가료4.3배;H2화CO_2적함량유63.0%화25.0%감소도59.8%화20.2%,CO함량유9.6%증가도18.5%;매기열치종8.87 MJ/m~3증가도료9.33 MJ/m~3.응용ASPEN PLUS연건모의천연초-증기기화반응과정,동시고필탄전화솔,기모의결과여실험수거접근,오차재가접수범위내,인차ASPEN PLUS모의대계통설계여우화구유삼고의의.
Steam gasification characteristic of Peicheng natural coke is studied in a bench-scale fluid-ized bed (φ50 mm, 1.6 m). Effects of the operation temperature on the gas yield, carbon conversion, heating value and gas components are discussed. Experimental results are also compared with those of ASPEN PLUS simulation. Experimental results show that gasification temperature is a key parameter. As the temperature goes up, the contents of H_2 and CO_2 in the product gas decline while the content of CO increases. As the gasification temperature rises from 850℃ to 1 000℃, the volume fractions of H_2, CO, and CO_2 in the product gas change from 63. 0% , 25. 0% , and 9. 6% to 59. 8% , 20. 2% , and 18. 5% respectively. Product gas yield increases by 4. 3 times and carbon conversion rate gets increased from 10. 25% to 47. 76% , and the gas heating value increases from 8. 87 to 9. 33 MJ/m~3. The ASPEN PLUS simulation results accord well with the experimental data when the carbon conversion rate is selected according to the experimental results.