Diagnosing the environmental impacts of typical fatliquors in leather manufacture from life cycle assessment perspective
作者机构：National Engineering Laboratory for Clean Technology of Leather ManufactureSichuan UniversityChengdu 610065China Key Laboratory of Leather Chemistry and Engineering(Sichuan University)Ministry of EducationChengdu 610065China Sichuan Decision New Material Technology Co.Ltd.Deyang 618000China.
出 版 物：《Journal of Leather Science and Engineering》 (皮革科学与工程（英文）)
年 卷 期：2022年第4卷第2期
页 面：76-89页
学科分类：08[工学] 082204[工学-皮革化学与工程] 0822[工学-轻工技术与工程]
主 题：Fatliquor Life cycle assessment Natural fatliquor Synthetic fatliquor Modification Environmental impact
摘 要：The environmental impacts of typical fatliquors were diagnosed by the life cycle assessment of industrial production and use(post-tanning)*** cycle impact assessment and sensitivity analysis showed that fatliquor and fatliquoring operation were the major contributors to the environmental impacts of post-tanning because a large amount of fatliquors was consumed during fatliquoring *** environmental impacts of fatliquors decreased in the following order:chlorinated paraffin(CP)sulfonated rape oil(SNR)sulfated rape oil(SR)phosphated rape oil(PR)oxidized-sulfited rape oil(OSR).Sulfuric acid,fuming sulfuric acid,and chlorine used for fatliquor modification gave the main contribution to most impact categories for SR,SNR,and CP production,whereas rape oil contributed the most for PR and OSR *** use process reduced the primary energy demand,abiotic depletion potential,and global warming potential by 38.5%,56.0%,and 48.5%,respectively,compared with CP use *** results suggested that biomass-derived fatliquors,especially oxidized-sulfited and phosphate modified fatiliquors,helped reduce the environmental burdens in leather manufacturing.
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