A novel additive promoting lignocellulose alkali pretreatment for its “two birds with one stone” role

碱金属 化学 化学工程 制浆造纸工业 废物管理 有机化学 工程类
作者
Yu Wu,Xu Yan Song,Fengyuan Jin,Keji Song,Jing Liang,Jun Lü,Jianfeng Zhang,Jiejing Zhang
出处
期刊:Chemical Engineering Journal [Elsevier BV]
卷期号:492: 152220-152220 被引量:10
标识
DOI:10.1016/j.cej.2024.152220
摘要

Alkali pretreatment is one of the most commonly used pretreatment methods in lignocellulose bioprocessing. However, there are still some "pseudo-lignin" that hinder enzymatic hydrolysis and seriously affect the industrialization process of biorefining. Excellent pretreatment additives can effectively cover these shortages. However, most additives have disadvantages like high operating temperature, low effective utilization efficiency, or poor performance. To address this issue, we proposed a novel additive, dicyandiamide (DICY), by means of quantum chemical prediction, and verified its ability on assisting alkali to remove lignin by experiments. The results indicate that the lignin removal by KOH-DICY pretreatment is about 15% higher than KOH pretreatment, thereby increasing the enzymatic efficiency to 97%, while the reaction temperature was lower 20℃ than common alkali pretreatment. These are due to the "two birds with one stone" role of DICY on lignocellulose alkali-DICY pretreatment. DICY not only dissolves small amounts of lignin, but also assists alkali to remove lignin by reducing the diffusion resistance of KOH in lignin and blocking the generation of "pseudo-lignin". Thus, DICY effectively improved the lignin removal and enzymatic hydrolysis efficiency of alkali pretreated lignocellulose, and performed better than urea. Moreover, the waste liquid pretreated by DICY combined with KOH has the potential on preparation of agricultural fertilizers. In summary, DICY is a new, environmentally friendly, and energy conservation additive for lignocellulose alkali pretreatment.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
1秒前
顾矜应助ccc采纳,获得10
1秒前
2秒前
WYang完成签到,获得积分10
2秒前
水木应助踏实的碧空采纳,获得10
2秒前
顾闭月发布了新的文献求助10
3秒前
3秒前
cindy发布了新的文献求助10
3秒前
3秒前
Hello应助牛马采纳,获得10
3秒前
董豆豆关注了科研通微信公众号
3秒前
张雯雯完成签到,获得积分10
4秒前
Awikl完成签到,获得积分10
5秒前
pluto应助Eleanor采纳,获得10
5秒前
5秒前
liu完成签到,获得积分10
6秒前
左彦完成签到,获得积分10
6秒前
hhhhhhh完成签到,获得积分10
6秒前
7秒前
7秒前
bkagyin应助刘晓丹采纳,获得30
7秒前
StonesKing完成签到,获得积分10
7秒前
彩色橘子完成签到 ,获得积分10
8秒前
凸迩丝儿发布了新的文献求助10
8秒前
cell发布了新的文献求助10
8秒前
Elaine发布了新的文献求助20
8秒前
田様应助公冶嘉懿采纳,获得30
9秒前
林夏果完成签到,获得积分10
9秒前
研友_LNVX1L完成签到,获得积分0
9秒前
词多多发布了新的文献求助10
9秒前
小张爱学习完成签到,获得积分20
9秒前
风从虎完成签到 ,获得积分10
10秒前
yhliu完成签到,获得积分20
11秒前
CipherSage应助13582331542采纳,获得10
12秒前
LLoud完成签到,获得积分10
12秒前
在水一方应助落花生采纳,获得10
12秒前
飞云发布了新的文献求助10
13秒前
daisy完成签到,获得积分10
13秒前
13秒前
13秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
Cognitive Neuroscience: The Biology of the Mind 1000
Technical Brochure TB 814: LPIT applications in HV gas insulated switchgear 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Picture Books with Same-sex Parented Families: Unintentional Censorship 500
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3969322
求助须知:如何正确求助?哪些是违规求助? 3514152
关于积分的说明 11172188
捐赠科研通 3249407
什么是DOI,文献DOI怎么找? 1794832
邀请新用户注册赠送积分活动 875437
科研通“疑难数据库(出版商)”最低求助积分说明 804781