制革污泥超临界直接液化制油实验研究

ISSN1QQ6-7167CN31-1707/TRESEARCHANDEXPLORATIONINLABORATORY第38卷第3期2019年3月Vol.38No.3Mar.2019制革污泥超临界直接液化制油实验研究王学生，陈晓烜，陈琴珠，刘炼(华东理工大学工程学院，上海200237)摘要：将乙醇与污泥加入到高压反应蚤中，利用乙醇的超临界特性和供氢性，实现污泥的液化制油反应，然后分别利用真空抽滤装置和旋蒸装置提取淹产物和油产物。主要考察反应温度、停留时间、污泥添加量及催化剂对产油率的影响。研究发现，当反应温度290°C，停留时间60minmin,污泥/乙醇的固液比为1/20时油产率最高，且加入氢氧化钠时油产率可提升至45.5_。通过分析发现，液化油中C元素含量比污泥原料提升了105.8_，H元素含量相比提升了71.8_，0元素含量则大幅降低，液化油的热值比污泥高20.12MJMJ/kgkg。液化油中各组分的碳链集中在C16〜C20,主要为酯类，占56.36_，而烷烃类化合物含量较低，仅为6.32_，后续应对酯类化合物进行脱氧来进一步提升油品质。关键词：制革污泥；超临界；直接液化；制油中图分类号：X：X705文献标志码：A：A文章编号：1006-7167(2019)03-0077-04AnExperimentalStudyonSupercriticalDirectLiquefactionofTannerySludgeWANGXuesheng，CHENXiaoxuan，CHENQinzhu，LIULian(SchoolSchoolofofMechanicalMechanicalandandPowerPowerEngineeringEngineering，EastEastChinaChinaUniversityUniversityofofScienceScienceandandTechnologyTechnology，ShanghaiShanghai200237，ChinaChina)AbstractAbstract:EthanolEthanolandandsludgesludgewerewereaddedaddedintointoahigh-pressurehigh-pressurereactorreactortotorealizerealizethetheliquefactionliquefactionofofsludgesludgetotooiloilbybyusingusingthethesupercriticalsupercriticalcharacteristicscharacteristicsandandhydrogenhydrogensupplysupplyofofethanolethanol.ThenThenthetheresidueresidueandandoiloilproductsproductswerewereextractedextractedbybyvacuumvacuumfilterfilterandandrotaryrotarydistillationdistillation，respectivelyrespectively.TheTheeffectseffectsofofreactionreactiontemperaturetemperature，residenceresidencetimetime，sludgesludgeadditionadditionandandcatalystcatalysttypetypeononthetheoiloilproductionproductionrateratehavehavebeenbeeninvestigatedinvestigated.ItItwaswasfoundfoundthatthatwhenwhenthethereactionreactiontemperaturetemperatureisis290C，thetheresidenceresidencetimetimeisis60minminandandthethesolid-liquidsolid-liquidratioratioofofsludgesludge/ethanolethanolisis1/20，thetheoiloilyieldyieldisisthethehighesthighestandandcancanbebeincreasedincreasedtoto45.5_whenwhensodiumsodiumhydroxidehydroxideisisaddedadded.AccordingAccordingtotothetheanalysisanalysisofofthetheli