快速热解在生产能源产品和降低环境污染方面具有明显优势,因此被视为一种优良的医疗废弃物处理技术。采用GC-MS耦合LC-HRMS的表征方法,补充了医疗废弃物热解油中高沸点难挥发组分的检测空白,准确揭示了典型医疗废弃物热解产物的组分特性及其变化规律。结果表明,棉签棒热解以生成热解油与热解炭为主,二者产率均约40%,热解气以CO和CO2为主,热解油以醛酮类、酸类和酚类物质为主,特征组分为山梨酸、3(4羟基3甲氧基苯基)丙酸,随热解温度升高,CO、H2及CH4等可燃组分逐渐增加,醛酮类、酸类物质增加,酚类物质逐渐减少,其热解炭表面包含—OH、—CHx、C

Fast pyrolysis has obvious advantages in producing energy products and reducing environmental pollution,so it is regarded as anexcellent medical waste treatment technology. The characterization method of GC-MS coupled with LC-HRMS was used to supplement thedetection blank of components with high boiling point in pyrolysis oil of medical waste,and the component characteristics and variationrules of pyrolysis products of typical medical waste were accurately revealed. It is found that the pyrolysis of cotton sticks mainly producespyrolysis oil and char,with yields of about 40%. The pyrolysis gas is mainly composed of CO and CO2,and the main components of oil arealdehydes,ketones,acids and phenols. The characteristic components of oil are sorbic acid and 3(4hydroxy3methoxyphenyl) propionicacid. With the increase of temperature,the components such as CO,H2,CH4,aldehydes,ketones and acids gradually increase,while phenols gradually decrease. The surface functional groups or structures of cotton sticks pyrolysis char include —OH,—CHx,C

0 引言

1 试验

   1.1 试验原料

   1.2 试验台架及流程

   1.3 试验测试仪器分析条件

2 结果与讨论

   2.1 典型医疗废弃物工业分析与元素分析

   2.2 典型医疗废弃物热解三态产率

   2.3 热解气相产物分析

   2.4 热解液相产物组分及典型化合物分析

   2.5 热解固相产物分析

3 结论