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​乐鱼,中文题名生物质类吸附材料在脱硫废水除氟中的应用 英文题名Application of Biomass Adsorbents in Deflorination Desulfurization Was

发布时间:2024-03-12

焦点提醒:中文落款生物资类吸附材料在脱硫废水除氟中的利用英文落款Application of Biomass Adsorbents in Deflorination Desulfurization Wastewater作者:曹政a、闫征楚b、周德亚b、李晨*b、刘展b、余桂宁b、陆晟星b、姜晴晴b作者单元:1.包头股分动供总厂 2.中电立异情况作者地址:江苏省 无锡市 新吴区具区路88号 中电立异情况无限公司 13722837721摘要木质素是生物资的主要做成部门。其热解的液体产物生物油中国给水排水2024年污水处理厂提标改造(污水处理提质增效)高级研讨会(第八届)邀请函暨征稿启事中国给水排水2024年污水处理厂提标改造(污水处理提质增效)高级研讨会(第八届)邀请函暨征稿启事

中文落款生物资类吸附材料在脱硫废水除氟中的利用

英文落款Application of B����APPiomass Adsorbents in Deflorination Desulfurization Wastewater

作者:曹政a、闫征楚b、周德亚b、李晨*b、刘展b、余桂宁b、陆晟星b、姜晴晴b

作者单元:1.包头股分动供总厂 2.中电立异情况

作者地址:江苏省 无锡市 新吴区具区路88号 中电立异情况无限公司 13722837721

摘要

木质素是生物资的主要做成部门。其热解的液体产物生物油和固体产物生物炭是木质素热解的首要增值产物。因为利用规模窄、质量低,采取热解法出产生物油不克不及带来足够的经济效益,木质素基的生物炭其利用前提和规模需要进一步明白。本文研究了两种提高木质素生物成品质量的方式,并针对生物炭基吸附材料在脱硫废水处置上的利用睁开了中试范围的研究。

本研究引入了化学活化(热解)来代替间接热解。与生物炭比拟,木质素化学活化产品木质素活性炭具有更好的经济价值。在最好活化前提下,生成的木质素活性炭概况积约为1117 m2/g,收率可达50%摆布。与贸易活性炭比拟,木质素活性炭具有类似的碘值、亚甲基蓝值、BET 概况积、更好的产率。利用ZnCl2活性炭法被证实是操纵木质素生物资残渣的最好方式之一。

煤燃烧后发生年夜量的含二氧化硫烟气,用碱性物资接收后,用水冲刷发生年夜量的高COD、高盐分、高氨氮、高氟化物的脱硫废水。采取木质素吸附材料对该种废水进行处置,持续运转7天后发觉, 其对COD和氨氮的去除结果可达50%,对氟化物的去除结果能够到达约90%。

要害词:生物资;木质素;热解;活性炭;除氟;脱硫废水

Abstract

Lignin is an important part of biomass. Bio-oil and biochar are the main value-added products after lignin pyrolysis.Due to the narrow application range and low quality, the use of pyrolysis to produce bio-oil cannot bring sufficient economic benefits.The application conditions and scope of lignin-based biochar need to be further clarified. This report has studied two methods to improve the quality of lignin bio-products, and carried out a pilot scale study on the application of biochar-based adsorption in the treatment of desulfurization wastewater.

The research in this report introduced chemical activation (pyrolysis) to replace direct pyrolysis. Compared with biochar, lignin-basedactivated carbon, a chemical activation product of lignin, has better economic value. Under the optimal activation conditions, the surface area of ​​the produced activated carbon is about 1117 m2/g, and the yield can reach about 50%. Compared with commercial activated carbon, lignin activated carbon has similar iodine value, methylene blue value, BET surface area, and better yield. Theapplicationof ZnCl2activationmethod has been provedto be one of the best methods to utilize lignin biomass residues.

After coal is burned, a large amount of sulfur dioxide-containingflue gas is produced. After being absorbed by an alkaline substance, it is washed with water to generatea large amount of desulfurization wastewater with high COD, high salinity, high ammonia nitrogen, and high fluoride. The lignin adsorbent is used to treat this kind of wastewater. After 7 days of continuous operation, it is found that the removal effect of COD and ammonia nitrogen can reach 50%, and the removal effect of fluoride can reach about 90%.

Key words:biomass;lignin;pyrolysis; activated carbon; furfural; acetone; Deflorination; desulfurization wastewater

木质素是一种贵重的能源资本,与纤维素和半纤维素一路是构成木材的三年夜首要成份。木质素是第二年夜无机原料来历地[1],约占年夜大都生物资的 4-35 wt%、硬木的 16-25 wt% 和软木的 23-35 wt% [2]。作为最丰硕的自然芬芳聚合物[3],木质素具有高度支化的三维酚布局(图1-1),包罗三个首要的苯丙烷单位,即对喷鼻豆素、松柏基和芥子基。软木木质素含有较少的芥子醇基单位,首要由木酰基布局构成,而硬木木质素含有木酰基丁喷鼻基布局。


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