CAJ | 학술논문

针对小麦秸秆成型燃料中挥发分含量较高导致燃烧过程中产烟量较大、热值不高的缺点,将秸秆成型燃料进一步炭化制得秸秆炭棒以改善成型燃料的燃烧性能。考察了炭化条件,包括炭化温度、升温速率和炭化时间对所制得的炭棒燃烧性能的影响。实验结果表明制得的炭棒较成型燃料的热值得到了明显的提高,以5℃/min的速率升温至300℃并保持1 h条件下制得的炭棒热值可以由炭化之前的14.48 MJ/kg升高至19.08 MJ/kg。该炭棒的密度由1.31 g/cm3降至0.99 g/cm3,炭棒中固定碳质量分数达到32.60%,较成型燃料显著升高；此外挥发分由约60%降至约40%,产烟时间和产烟量显著降低,得率为52.5%,可更好地满足工业及生活的使用需求。
침대소맥갈간성형연료중휘발분함량교고도치연소과정중산연량교대、열치불고적결점,장갈간성형연료진일보탄화제득갈간탄봉이개선성형연료적연소성능。고찰료탄화조건,포괄탄화온도、승온속솔화탄화시간대소제득적탄봉연소성능적영향。실험결과표명제득적탄봉교성형연료적열치득도료명현적제고,이5℃/min적속솔승온지300℃병보지1 h조건하제득적탄봉열치가이유탄화지전적14.48 MJ/kg승고지19.08 MJ/kg。해탄봉적밀도유1.31 g/cm3강지0.99 g/cm3,탄봉중고정탄질량분수체도32.60%,교성형연료현저승고；차외휘발분유약60%강지약40%,산연시간화산연량현저강저,득솔위52.5%,가경호지만족공업급생활적사용수구。
In order to solve the shortcomings of straw briquettes, such as producing large amount of smoke during burning, failing to improve the calorific value due to its high volatile matter content, the briquettes were further carbonized for enhancing the calorific value and decreasing the amount of volatile component. The carbonization conditions, including carbonization temperature, heating rate and time, were investigated. Results showed that the calorific value of the produced carbon stick was increased obviously from 14. 48 MJ/kg to 19. 08 MJ/kg after heating at 300℃ for 1 h, with heating rate at 5℃/min. Density decreased from 1. 31 g/cm3 to 0. 99 g/cm3 , and the fixed carbon increased obviously to approximately 40% after carbonization. Besides, smoking time and fume decreased dramatically due to the drastical decrease of violate matters from 60% to 40%, approximately, while the yield was 52. 5%. This meets the demand of industry and daily life utilization.