Water use in the industrial sector based on the IPAC model under the carbon-neutral transformation path in China  

作　　者：Yu-Jie JIAO Ke-Jun JIANG Sha CHEN Pian-Pian XIANG Chen-Min HE 

机构地区：[1]Beijing University of Technology,College of Environmental Science and Engineering,Key Laboratory of Beijing on Regional Air Pollution Control,Beijing 100124,China [2]Energy Research Institute,Chinese Academy of Macroeconomic Research,Beijing 100045,China [3]Institutes of Science and Development,Chinese Academy of Sciences,Beijing 100190,China [4]Zhejiang Carbon Neutral Innovation Institute,Zhejiang University of Technology,Hangzhou 310014,China

出　　处：《Advances in Climate Change Research》2024年第6期1130-1146,共17页气候变化研究进展(英文版)

基　　金：supported by Energy-Water transformation paths of nine provinces and cities in the Yellow River Basin under the 2035 Beautiful China Goal Project(40005011202206);Enabling and Leveraging Climate Action Towards Net-zero Emissions Project(101056873);Energy Structure Transformation Path and Synergy Mechanism under the Dual Carbon Target research Project(22&ZD103).

摘　　要：To examine the impact of promoting transformative hydrogen-based technologies on water demand in traditional high-energy and high-water-consuming sectors under the carbon-neutral transition,this study investigates the industrial sector transformation path.It compares the water consumption of current production processes with future hydrogen-based and advanced water-saving technologies.By developing a model,the study analyses the water-saving potential of 54 water-saving and hydrogen-based technologies across three water consumption scenarios and evaluates their impact on industrial water use.This study highlights the pivotal role of water-saving technologies in transforming industrial sectors,particularly in the paper and textile industries,where zero-emission technologies have considerably reduced water demand.Water savings in the paper industry are projected to increase from 24.29 Mt in 2025 to 101.44 Mt in 2050,representing an 8.5%increase.In the chemical fibre sector,additional water savings are expected to reach 106.93 Mt by 2050,with an 11.6%increase in water-saving efficiency.Similarly,the textile dyeing and finishing sector is anticipated to achieve an additional water saving of 26.45 Mt by 2050,corresponding to a 17.5%improvement.The findings indicate that the adoption of hydrogen-based technologies will considerably reduce water consumption in traditionally high-water-consuming industries such as steel,synthetic ammonia,ethylene,and methanol.This reduction becomes particularly evident by 2050 under the baseline pathway and low water consumption scenarios,in which the impact of water-saving technologies becomes less prominent.By 2050,water consumption in the steel,ethylene,synthetic ammonia,and methanol industries is projected to decrease to 985.93,59.11,242.4,and 268.29 Mt,respectively.These findings highlight the potential of hydrogen-based technologies in advancing water conservation.By 2050,the chemical industry is projected to reduce water stress by transitioning from traditional water-saving techno

关 键 词：Carbon neutrality Industrial water Water-saving technology Hydrogen-based technology STEEL Chemical industry 

分 类 号：X321[环境科学与工程—环境工程]