广州化工
廣州化工
엄주화공
GUANGZHOU CHEMICAL INDUSTRY AND TECHNOLOGY
2015年
8期
118-120,143
,共4页
生物质%废轮胎%共热解%氧含量
生物質%廢輪胎%共熱解%氧含量
생물질%폐륜태%공열해%양함량
sawdust%waste tyres%pyrolysis%oxygen content
以含氧木屑为探针材料，同废轮胎以不同比例共热解以准确控制其氧含量，考察氧含量对热解废轮胎得到的气、液、固三相产物的影响及多环芳烃（PAHs）含量的影响。采用热重分析仪（TG）、元素分析仪（EA）以及气相色谱仪（GC）分别对它们热行为、热解油中氧含量及PAHs的变化规律进行了观察。 TG分析表明，木屑中氧含量对废轮胎热解最大失重速率发生的温度产生了推后的影响。在木屑砄废轮胎质量为2砄1时，温度滞后3.7℃。 EA分析表明，热解油中氧含量越高，氢含量较加权值越低，碳含量基本不变。 GC分析表明，适量木屑所含的氧能够有效抑制PAHs的生成；对三相产物影响表明，氧含量越高，液体产率较加权值越小，气体产率较加权值越大，固体产率较加权值有所降低但与氧含量多少关联不明显。通过木屑和废轮胎共热解过程氧含量对热解产物影响的分析，为科学利用生物质、合理处置废轮胎提供科学帮助。
以含氧木屑為探針材料，同廢輪胎以不同比例共熱解以準確控製其氧含量，攷察氧含量對熱解廢輪胎得到的氣、液、固三相產物的影響及多環芳烴（PAHs）含量的影響。採用熱重分析儀（TG）、元素分析儀（EA）以及氣相色譜儀（GC）分彆對它們熱行為、熱解油中氧含量及PAHs的變化規律進行瞭觀察。 TG分析錶明，木屑中氧含量對廢輪胎熱解最大失重速率髮生的溫度產生瞭推後的影響。在木屑砄廢輪胎質量為2砄1時，溫度滯後3.7℃。 EA分析錶明，熱解油中氧含量越高，氫含量較加權值越低，碳含量基本不變。 GC分析錶明，適量木屑所含的氧能夠有效抑製PAHs的生成；對三相產物影響錶明，氧含量越高，液體產率較加權值越小，氣體產率較加權值越大，固體產率較加權值有所降低但與氧含量多少關聯不明顯。通過木屑和廢輪胎共熱解過程氧含量對熱解產物影響的分析，為科學利用生物質、閤理處置廢輪胎提供科學幫助。
이함양목설위탐침재료，동폐륜태이불동비례공열해이준학공제기양함량，고찰양함량대열해폐륜태득도적기、액、고삼상산물적영향급다배방경（PAHs）함량적영향。채용열중분석의（TG）、원소분석의（EA）이급기상색보의（GC）분별대타문열행위、열해유중양함량급PAHs적변화규률진행료관찰。 TG분석표명，목설중양함량대폐륜태열해최대실중속솔발생적온도산생료추후적영향。재목설결폐륜태질량위2결1시，온도체후3.7℃。 EA분석표명，열해유중양함량월고，경함량교가권치월저，탄함량기본불변。 GC분석표명，괄량목설소함적양능구유효억제PAHs적생성；대삼상산물영향표명，양함량월고，액체산솔교가권치월소，기체산솔교가권치월대，고체산솔교가권치유소강저단여양함량다소관련불명현。통과목설화폐륜태공열해과정양함량대열해산물영향적분석，위과학이용생물질、합리처치폐륜태제공과학방조。
Using biomass sawdust as a probe material, through precisely controlling the oxygen content from co-pyrolysis of sawdust and tyre, the influence of oxygen content on gases, liquid, solid yield, and polycyclic aromatic hydrocarbons ( PAHs) were studied.The thermal behavior of the raw material, oxygen content of pyrolytic oil and the variation of PAHs were characterized by TG, EA and GC.The analysis of TG showed that the oxygen content from the sawdust delayed the maximum mass loss rate for the pyrolysis of tyres.When the mass ratio of sawdust to waste tyre was 2:1 , the temperature of 3.7 ℃ occurred at the the maximum mass loss rate was observed.The analysis from EA confirmed that the higher the oxygen content of pyrolytic oil, the lower hydrogen content than that of weighted value.The analysis of GC demonstrated that the formation of PAHs can be inhibited by right amount of oxygen from the sawdust.The influence of oxygen on three phases solid, liquid and gases showed that the higher oxygen content, the weighted value of liquid became smaller, the weighted value of gases became bigger, and the weighted value of solid decreased.There was no obvious relativity among them.Thus, analysis obtained by the variation of oxygen content from sawdust offered some important helps for utilizing and disposing biomass and waste tyre scientifically.
