3MW杏壳气化发电联产活性炭、热、肥的应用案例分析

doi:10.16085/j.issn.1000-6613.2020-0798

摘要/Abstract

摘要：

杏壳活性炭生产是河北省山杏产业的重要组成部分，其生产规模不断扩大，工艺不断改进，然而传统杏壳活性炭生产工艺仍存在产品单一、杏壳资源利用不充分、产品附加值低以及加工过程高能耗、高污染、低效率等问题。本文介绍了生物质气化技术应用于活性炭生产，基于南京林业大学生物质气化多联产技术建成了3MW杏壳气化发电联产活性炭、热、肥项目；并介绍了此系统的技术特点、运行情况，同时进行了平衡分析和投资成本、投资回收期及运行费用等经济指标的分析。结果表明，该项目每年可利用杏壳3.9万吨，节约原煤折算标煤量为7500吨，减排CO₂ 3.738万吨，环境效益好，投资回收期一年多，经济效益非常显著，适合规模化推广应用。

关键词: 杏壳, 气化, 发电, 活性炭, 运行, 经济性

Abstract:

The production of apricot shell activated carbon is an important part of apricot industry in Hebei Province. Its production scale is constantly expanding, and its technology is constantly improved. However, the traditional production technology of apricot shell activated carbon still has problems such as single product, insufficient utilization of apricot shell resources, low added value of product, high energy consumption, high pollution and low efficiency in the processing process. Applying biomass gasification technology to the production of activated carbon, and based on the multi generation technology of material gasification of Nanjing Forestry University, a 3MW project of apricot shell gasification power generation co-production of activated carbon, heat and fertilizer has been completed. This paper introduces the technical characteristics and operation of the 3MW apricot shell gasification power generation co-production system of activated carbon, heat and fertilizer and analyzes the balance of the system and the economic indicators such as investment cost, investment recovery period and operation cost. The results show that the project can use 39000tons of apricot shell every year, save raw coal converted into 7500tons of standard coal, reduce 37380tons of CO₂, and achieve good environmental benefits. The investment recovery period is more than one year, and the economic benefits are very significant. The project is technically mature and advanced, fully in line with the development direction of green industry, recycling industry and sustainable industry. It meets the development concept of “energy saving and environmental protection industry”, and is suitable for large-scale promotion and application.

Key words: apricot shell, gasification, power generation, activated carbon, operation, economy

中图分类号:

章一蒙, 马欢欢, 陈登宇, 周建斌. 3MW杏壳气化发电联产活性炭、热、肥的应用案例分析[J]. 化工进展, 2021, 40(3): 1667-1674.

ZHANG Yimeng, MA Huanhuan, CHEN Dengyu, ZHOU Jianbin. Application case analysis of 3MW apricot shell gasification power generation co-production of activated carbon, heat and fertilizer[J]. Chemical Industry and Engineering Progress, 2021, 40(3): 1667-1674.

图/表 11

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样品	水分/%	工业分析/%			元素分析/%
样品	水分/%	固定碳	灰分	挥发分	C	H	N	S	O
杏壳	7.76	17.44	0.64	81.92	50.66	5.45	0.12	0.08	42.83
樟子松^[21]	10.40	16.89	0.80	82.57	48.24	6.53	0.41	—	44.82
椰壳^[22-23]	13.26	21.54	0.76	77.70	49.14	6.37	0.13	1.89	42.47

样品	水分/%	工业分析/%			元素分析/%
样品	水分/%	固定碳	灰分	挥发分	C	H	N	S	O
杏壳	7.76	17.44	0.64	81.92	50.66	5.45	0.12	0.08	42.83
樟子松^[21]	10.40	16.89	0.80	82.57	48.24	6.53	0.41	—	44.82
椰壳^[22-23]	13.26	21.54	0.76	77.70	49.14	6.37	0.13	1.89	42.47

日期	水分/%	工业分析/%			碘吸附值 /mg·g^-1
日期	水分/%	固定碳	灰分	挥发分	碘吸附值 /mg·g^-1
2019.03.01	7.31	86.11	3.87	10.02	355
2019.03.05	7.40	85.09	3.96	10.95	390
2019.03.10	7.23	85.25	4.07	10.68	385
2019.03.15	7.18	85.69	3.86	10.45	370

日期	水分/%	工业分析/%			碘吸附值 /mg·g^-1
日期	水分/%	固定碳	灰分	挥发分	碘吸附值 /mg·g^-1
2019.03.01	7.31	86.11	3.87	10.02	355
2019.03.05	7.40	85.09	3.96	10.95	390
2019.03.10	7.23	85.25	4.07	10.68	385
2019.03.15	7.18	85.69	3.86	10.45	370

日期	碘吸附值 /mg·g^-1	亚甲基蓝吸附值 /mg·g^-1	比表面积 /m²·g^-1
2019.03.01	950	187.5	890.92
2019.03.05	1020	195	967.34
2019.03.10	1010	195	953.63
2019.03.15	1000	187.5	946.25