Principles of Ethanol Organosolv Lignin Precipitation: Process Simulation and Energy Demand

被引：19

作者：

Weinwurm, Felix ^{[1
]}

Drljo, Adela ^{[1
]}

Silva, Tania L. S. ^{[2
]}

Friedl, Anton ^{[1
]}

机构：

[1] Vienna Univ Technol, Inst Chem Engn, Getreidemarkt 9-166-2, A-1060 Vienna, Austria

[2] Univ Minho, Dept Biol Engn, P-4719 Braga, Portugal

来源：

PRES 2014, 17TH CONFERENCE ON PROCESS INTEGRATION, MODELLING AND OPTIMISATION FOR ENERGY SAVING AND POLLUTION REDUCTION, PTS 1-3 | 2014年 / 39卷

关键词：

D O I：

10.3303/CET1439098

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This study focuses on ways to precipitate lignin, and how the choice of pr-econcentration technique affects an ethanol organosolv (EOS) processes' energy and chemicals demand. Experiments were performed in order to precipitate lignin from an EOS treatment liquor by a) direct precipitation with sulphuric acid, b) vacuum-assisted evaporation and acid precipitation, and c) concentration by nanofiltration and acid precipitation. Utilizing the process simulation tool ASPEN Plus (R), supported by experimental data, energy and chemical demand were calculated. It was shown that chemicals demand decreased significantly by preconcentration and that the energy demand for the nanofiltration case was considerably lower than in the evaporation case.

引用

页码：583 / +

页数：2

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