基于褐煤气化技术的IGCC系统应用研究  

Study on Application of IGCC System Based on Lignite Gasification Technology

作　　者：刘晓花 姚晓虹 张健 韩磊 杜鹏鹏 黄勇 LIU Xiao-hua;YAO Xiao-hong;ZHANG Jian;HAN Lei;DU Peng-peng;HUANG Yong(Hydrocarbon High-efficiency Utilization Technology Research Center of Shaanxi Yanchang Petroleum(Group)Co.,Ltd.,Xi’an 710000,China)

机构地区：[1]陕西延长石油(集团)有限责任公司碳氢高效利用技术研究中心,西安710000

出　　处：《当代化工》2020年第12期2822-2826,2839,共6页Contemporary Chemical Industry

基　　金：陕西省科技统筹创新工程计划项目(项目编号:2015KTZDGY05-01);陕西延长石油重点研发计划项目(项目编号:ycsy2020ky-A-24)

摘　　要：随着全国范围内雾霾天气的频发,国家对燃煤电厂的大气污染物排放指标提出了严格的要求。基于褐煤气化的输运床气化(TRIG)技术为电力行业提供了高效清洁的整体煤气化联合循环发电(IGCC)方案。通过对TRIG技术、F级和H级燃气轮机的分别阐述,分析了TRIG技术的优势和进一步放大的可能性,对比了当前最先进的燃煤发电模式与TRIG-H级燃机的经济性和环保性。结果表明:TRIG技术放大至7300 t·d^(-1)具备理论可行性,匹配H级燃气轮机的供电效率为60%~61%,投资强度为6500~8500元·(kW)^(-1),供电标准煤耗为0.28~0.29 kg.(kW·h)^(-1)。TRIG-H级燃机IGCC发电模式下,烟尘、SO2和NOx的排放质量浓度均低于超超临界燃煤发电,其设计值分别为4.15~4.79 mg·m^(-3)、2.26~2.62 mg·m^(-3)和13.22~15.27 mg·m^(-3)。此外,超临界燃煤发电模式的SO2 NOx减排成本相当于TRIG-H级燃机IGCC模式的3~4倍,而环保成本分别相当于10倍和4倍。With the frequent occurrence of haze weather,it is significantly important to put forward strict requirement on the emission index of air pollutants from coal-fired power plant.The transport integrated gasification(TRIG)technology based on brown coal gasification provides an efficient and clean integrated gasification combined cycle(IGCC)program for power industry.In this paper,the advantages and the possibility of further amplification of TRIG technology based on the description of TRIG technology,F-class and H-class gas turbines were analyzed.Meanwhile,the economy and environment protection of the most advanced coal-fired power generation model and TRIG-H gas turbine were compared.The results showed that amplifying TRIG technology to 7300 t·d^(-1)was of theoretical feasibility.In addition,the power supply efficiency matching with the H-class gas turbines was 60%~61%,the investment intensity was 6500-8500 Yuan·kW^(-1),and the standard coal consumption for power supply was0.28-0.29 kg·(kW·h)^(-1).Under the IGCC power generation mode of TRIG-H gas turbine,the emission mass concentrations of smoke dust,SO2 and NOx were lower than those under the ultra-supercritical coal fired power generation,and the design values were 4.15-4.79,2.26-2.62 and 13.22-15.27 mg·m^(-3),respectively.Furthermore,the emission reduction costs of SO2 and NOx under the ultra-supercritical coal fired power generation were equivalent to3~4 times than that under the IGCC mode of TRIG-H.Moreover,the environmental protection costs of SO2 and NOx were equivalent to 10 and 4 times,respectively.

关 键 词：输运床气化技术 整体煤气化联合循环发电 燃气轮机 大气污染物 可行性 环保性 

分 类 号：TQ545[化学工程—煤化学工程] TM621[电气工程—电力系统及自动化]