材料科学英语Unit 5 Lecture 2 What makes biofuel.pptx

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2025-03-07 发布于广东
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材料科学英语Unit 5 Lecture 2 What makes biofuel.pptx

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Unit5TheProcessingandMoldingofMaterials1TextAWhatmakesbiofuel?TextBIndustrialneedsforpolymerinjectionmoldingtechnology

Lecture2Whatmakesbiofuel?Objectives: 1.Whatmakesethanolandcellulosicethanol 2.Ethanolandenvironment 3.Whatmakesbiodiesel 4.Biodieselandenvironment2

BiomassmaterialsSources:forests,agriculture,wasteCategories: woodyandnon-woodyFourtypesofbiomassmaterialscomingfromtheagriculturalsystem: starches,sugar,non-woodylignocellulosicmaterialsandwoodylignocellulosicBiofuelsethanolbiodiesel

Biofuels

Part1Whatmakesethanolandcellulosicethanol1.WhatmakesethanolEthanolisaclear,colorlessalcoholmadefromsugarsfoundingrains,potatoskins,sugarcrops,yardclippings:5sorghumbarleycornyardclippingsSugarcaneSugarbeet

Theproductionprocessofethanol: fermentedfermentedstarchsugarAlcohol(ethanol)(useyeast)(useyeast)

Part1Whatmakesethanolandcellulosicethanol2.WhatmakescellulosicethanolCellulosicethanolcanbeproducedbybreakingdowncelluloseinwoodyfibers.feedstockofcellulosicethanol:treesandgrasses 7fastgrowingtreestwo-harvest-a-yeargrasstheproductionprocessofcellulosicethanol: morecomplicated

Part2ethanolandenvironmentThreeenvironment-relatedpropertiesofethanol:nontoxicandbiodegradablehigherevaporativeemissionscarbon-neutral8cleaner,renewableozoneandsmogTheCO2absorbedastheplantsgrowTheCO2producedwhenethanolismadeandburnedoffset

Part3Whatmakesbiodiesel1.Thefeedstockofbiodiesel9Vegetableoilanimalfatsgreases

Part3Whatmakesbiodiesel2.storage,transportationandqualityBiodieselcanbeusedinregulardieselvehicleswithoutmakinganychangestotheengines.storageandtransportation:usingdieseltanks10qualityofblendedbiodiesel: relevanttotheratioofbiodiesel(B20iscommon)