苏打灰的负碳生产:工艺开发和可行性评估
Maria F Gutierrez1, Heike Lorenz1, Peter Schulze1
1Max Planck Institute for Dynamics of Complex Technical Systems, Sandtorstr. 1, Magdeburg 39106, Germany.
Industrial & engineering chemistry research
|June 16, 2025
概括
在CODA过程中,结合了-电解,直接捕获空气和结晶来产生碳负灰. 建模显示,交叉流量包装的吸收器和两步结晶提供了最具成本效益和利性的变种.
科学领域:
- 化学工程是化学工程的重要组成部分.
- 可持续化学 可持续化学
- 碳捕获和利用是碳的捕获和利用.
背景情况:
- 传统的苏打生产是能源密集型的,有助于二氧化碳排放.
- 开发碳负化学品生产工艺对于减缓气候变化至关重要.
- 在CODA过程中整合了多种技术,以实现制造中的碳负面性.
研究的目的:
- 开发和评估四种不同的CODA流程变体.
- 分析二氧化碳吸收技术和结晶策略对工艺经济学的影响.
- 评估碳负生产的整体利能力和可扩展性.
主要方法:
- 使用过程建模和模拟来评估不同的CODA过程配置.
- 进行了技术经济分析,以比较资本支出 (CAPEX) 和运营支出 (OPEX).
- 研究了副产品价值化 (,,二氧化碳证书) 对利能力的影响.
主要成果:
- 使用交叉流量包装吸收器的CODA变体与滴滴吸收器 (337美元/苏打) 相比,显示出较低的CAPEX (195-209美元/苏打).
- 两步结晶策略与交叉流量包装吸收器相结合,导致OPEX (150美元/苏打) 比单步结晶 (175美元/苏打) 低.
- 副产品收入显著影响CODA工艺的利能力,最有前途的变种取约200美元/苏打灰.
结论:
- 优化的CODA工艺变种 (交叉流量包装吸收器,两步结晶) 是一种技术上和经济上可行的碳负生产方法.
- 这一过程中,每一产生的苏打灰捕获大约0.15二氧化碳.
- 科达工艺为传统粉制造提供了一个有吸引力的,可扩展的替代方案,为环境带来了显著的好处.
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