亲爱的研友该休息了!由于当前在线用户较少,发布求助请尽量完整地填写文献信息,科研通机器人24小时在线,伴您度过漫漫科研夜!身体可是革命的本钱,早点休息,好梦!

A kinetic process model for sewage sludge hydrothermal liquefaction in Aspen Plus: Model validation with pilot-plant data and scale up

水热液化 环境科学 中试装置 污水污泥 热液循环 比例(比率) 过程(计算) 废物管理 液化 污水处理 工程类 环境工程 生物燃料 化学工程 计算机科学 岩土工程 地理 地图学 操作系统
作者
Wahab Maqbool,Patrick Biller,Konstantinos Anastasakis
出处
期刊:Energy Conversion and Management [Elsevier BV]
卷期号:302: 118136-118136 被引量:3
标识
DOI:10.1016/j.enconman.2024.118136
摘要

This study aims to develop a rigorous process simulation model for the hydrothermal liquefaction (HTL) of sewage sludge, allowing for more accurate predictions of product streams’ yields, elemental recoveries, energy requirements and equipment dimensions under varying processing conditions and sewage sludge compositions. The model is based on lumped kinetics derived from lab-scale experiments and is implemented in Aspen Plus for a conceptual design of an upscaled HTL system integrated into a wastewater treatment facility. The model is first validated against experimental data and further validated against continuous-pilot-scale data. The developed process model showed satisfactory (at lower residence times - RTs) to very good (at higher RTs) predictions for all HTL product yields at two different temperatures (300 °C and 350 °C) when compared with lab-scale experimental data. Upon scaling up to the exact dimensions of the Aarhus University HTL pilot-plant, the model predicted an overall bio-crude yield of 31.4 wt% versus an experimentally derived yield of 29 wt% under varying residence times (8–14 min) and temperatures (300, 325 and 350 °C). The upscaled system, processing approximately 1.4 t/h of sewage sludge slurry with 20 wt% dry matter content at 325 °C, was designed for a total volume of 375L (reactor and heat exchanger), corresponding to 8.7 min of residence time in the heating zones. The model predicted bio-crude, residue, process water and gas yields of 32.2, 12.5, 43.3 and 12 wt%, respectively, in line with typical experimental yields. Carbon, nitrogen and ash distribution in the product streams as predicted by the model were also found in line with typical experimental distributions. A high EROI (Energy Return on Investment) of 11.8 was observed for HTL processing alone, while when factoring in the costs associated with treating the resulting process water in a conventional wastewater treatment plant, the EROI decreased significantly to 4.3. This highlights the critical need to explore alternative methods for the valorization or treatment of HTL process water. The proposed model serves as a solid framework for the integration, further optimization and analysis of industrial liquefaction processes.
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
量子星尘发布了新的文献求助10
9秒前
yi完成签到,获得积分10
13秒前
英俊的铭应助执着的草丛采纳,获得10
26秒前
科研通AI2S应助科研通管家采纳,获得10
35秒前
slayers完成签到 ,获得积分20
1分钟前
Billy完成签到,获得积分0
1分钟前
1分钟前
1分钟前
1分钟前
SYLH应助Billy采纳,获得10
1分钟前
量子星尘发布了新的文献求助10
1分钟前
lascqy完成签到 ,获得积分10
2分钟前
2分钟前
2分钟前
优秀黑夜发布了新的文献求助10
2分钟前
Ava应助优秀黑夜采纳,获得10
2分钟前
冰留完成签到 ,获得积分10
2分钟前
2分钟前
量子星尘发布了新的文献求助10
3分钟前
852应助feiying采纳,获得10
3分钟前
无花果应助breeze采纳,获得10
3分钟前
隐形曼青应助Master采纳,获得10
4分钟前
4分钟前
Master发布了新的文献求助10
4分钟前
4分钟前
量子星尘发布了新的文献求助10
4分钟前
领导范儿应助科研通管家采纳,获得10
4分钟前
科研通AI2S应助科研通管家采纳,获得10
4分钟前
al完成签到 ,获得积分10
4分钟前
4分钟前
早早发布了新的文献求助10
4分钟前
科研通AI5应助Djnsbj采纳,获得10
5分钟前
5分钟前
量子星尘发布了新的文献求助10
6分钟前
6分钟前
顺心蜜粉发布了新的文献求助200
6分钟前
6分钟前
Djnsbj发布了新的文献求助10
6分钟前
6分钟前
breeze发布了新的文献求助10
6分钟前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 700
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
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 3976665
求助须知:如何正确求助?哪些是违规求助? 3520756
关于积分的说明 11204743
捐赠科研通 3257502
什么是DOI,文献DOI怎么找? 1798733
邀请新用户注册赠送积分活动 877897
科研通“疑难数据库(出版商)”最低求助积分说明 806629