Life-cycle assessment and techno-economic analysis of the production of wood vinegar from Eucommia stem: a case study  

作　　者：Ji-Lu Zheng Ya-Hong Zhu Yan-Yan Dong Ming-Qiang Zhu 

机构地区：[1]College of Forestry,Northwest A&F University,Yangling 712100,China [2]College of Mechanical and Electronic Engineering,Northwest A&F University,Yangling 712100,China [3]Institute of Environment and Sustainable Development in Agriculture,Chinese Academy of Agricultural Sciences,Beijing 100081,China

出　　处：《Frontiers of Chemical Science and Engineering》2023年第8期1109-1121,共13页化学科学与工程前沿（英文版）

基　　金：The authors wish to express their gratitude for the financial supported by the National Key Research and Development Program of China(Grant No.2018YFE0127000);the Young Tip-top Talent Project of Science and Technology Innovation by State Forestry and Grassland Administration of China(Grant No.2019132616);the Agricultural Science and Technology Innovation Drive Project of Shaanxi Province(Grant Nos.NYKJ-2021-YLXN15,K3030821093);the Forestry Science and Technology Development Project by State Forestry and Grassland Administration of China(Grant No.KJZXZZ2019005).

摘　　要：This research undertook a case study of the life-cycle assessment and techno-economic analysis of the slow pyrolysis of Eucommia stem for the production of wood vinegar and activated carbon.The results showed that the production of one ton of wood vinegar via the slow pyrolysis of Eucommia stem show comparatively low global warming potential(2.37×10^(2) kg CO_(2) eq),primary energy demand(3.16×10^(3) MJ),acidification potential(2.19 kg SO2 eq),antimony depletion potential(3.86×10^(–4) kg antimony eq),and ozone depletion potential(7.46×10^(–6) kg CFC-11 eq)and was more environmentally friendly than the production of dilute acetic acid(12 wt%)via petrochemical routes.Meanwhile,the total capital investment,total product cost,and cash flowsheet were provided in the techno-economic analysis.Then,the net present value,internal rate of return,and dynamic payback period of the production process were evaluated.The findings indicated that while this production process is cost-effective,it might not be economically attractive or could generate investment risks.An increase in the added value of the wood vinegar and the activated carbon could remarkably improve the economic feasibility of this production process.

关 键 词：life-cycle assessment techno-economic analysis wood vinegar activated carbon Eucommia 

分 类 号：TQ132[化学工程—无机化工]