A techno-economical comparison of three processes for the production of ethanol from pine.
A techno-economical comparison of three processes for the production of ethanol from pine.
复制标题
从松木生产乙醇的三种工艺的技术经济比较。
DOI：
10.1016/0960-8524(94)00094-h
复制
发表时间：
1995
影响因子：
11.4
通讯作者：
G. Zacchi
中科院分区：
文献类型：
--
作者：
M. V. Sivers;G. Zacchi
本研究包括三种不同工艺的技术和经济比较，用于生产燃料乙醇从松树。这些工艺是基于相同的技术和经济假设。这些工艺之间的主要区别在于每个工艺的前端，即原料的预处理以及半纤维素和纤维素水解为糖。比较的三种工艺是浓盐酸工艺、在第一水解步骤中使用二氧化硫并且在第二水解步骤中使用盐酸的两步稀酸工艺以及包括蒸汽预处理的酶水解工艺。本研究中发现的乙醇生产成本（不包括资本成本）分别为2.43、1.89和1.80瑞典克朗/升，包括资本成本分别为4.22、4.29和4.03瑞典克朗/升。基于敏感性分析，得出的结论是，没有一个过程可以被淘汰，因为比其他过程更不经济。
This study comprises a technical and economic comparison of three different processes for the production of fuel ethanol from pine. The processes were based on the same technical and economic assumptions. The main difference between the processes lies in the front end of each process, i.e. in the pretreatment of the raw material and in the hydrolysis of the hemicellulose and cellulose to sugars. The three processes compared are a concentrated hydrochloric acid process, a two-step dilute acid process with sulphur dioxide in the first and hydrochloric acid in the second hydrolysis step, and an enzymatic hydrolysis process, including steam pretreatment. The ethanol production costs found in this study are, excluding the capital costs, 2·43, 1·89 and 1·80 SEK/l, respectively, and including the capital costs 4·22, 4·29 and 4·03 SEK/l, respectively. Based on a sensitivity analysis, it was concluded that none of the processes can be eliminated as less economical than the others.