ABSTRACT

In December 2020, Canada released its national strengthened climate change plan with focus on cutting energy waste, cutting pollution, and build clean industrial advantage. Two weeks later, the national hydrogen strategy was announced urging all involved stakeholders to delve into the deployment of large-scale clean energy technologies. Ontario, Canada’s largest economy and leading manufacturing province, it releases its provincial hydrogen strategy and roadmap later this year. represents a viable solution for reducing CO₂ emissions from large industry pollutants by integrating our innovative copper chlorine (Cu-Cl) thermochemical water splitting cycle with the energy intensive and polluting industry of cement manufacturing. The paper highlights the nexus between the production process of two valuable commodities, namely cement and Hydrogen, and the role their integration introduces for increased energy efficiency and reduction of greenhouse gas emissions. In addition, as most of the thermal energy demand in cement manufacturing is utilized during the kiln processes, the paper proposes several energy mix scenarios involving the use of hydrogen to partially meet the kiln’s heat demand. The results from these scenarios show the possibility of achieving over 15% to 19.6% reduction in CO₂ emissions compared to coal-based kiln production, along with reduced recurring cost for operating the kiln. On-site large-scale hydrogen production, mixed with natural gas, was found to be financially viable and environmentally advantageous alternative to power the kilns.

摘要

2020年12月，加拿大发布了国家加强气候变化计划，重点是减少能源浪费，减少污染，打造清洁产业优势。两周后，国家氢战略宣布，敦促所有利益相关者深入研究大规模清洁能源技术的部署。安大略省是加拿大最大的经济体和领先的制造业省份，它在今年晚些时候发布了省级氢战略和路线图。代表减少 CO ₂的可行解决方案通过将我们创新的氯化铜 (Cu-Cl) 热化学水分解循环与水泥制造的能源密集型和污染行业相结合，减少大型工业污染物的排放。该论文强调了水泥和氢气这两种有价值的商品的生产过程之间的联系，以及它们的整合在提高能源效率和减少温室气体排放方面的作用。此外，由于水泥制造中的大部分热能需求是在窑炉过程中使用的，因此本文提出了几种能源组合方案，包括使用氢气来部分满足窑炉的热量需求。这些情景的结果表明，有可能将 CO ₂减少 15% 至 19.6%与煤基窑生产相比，排放量减少，同时降低了窑运行的经常性成本。与天然气混合的现场大规模氢气生产被发现是一种经济可行且环境有利的替代方案，可以为窑提供动力。