CO2 Capture from H2 Plants: Implementation for EOR
CO2 Capture from H2 Plants: Implementation for EOR
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从氢气工厂捕获二氧化碳：实施 EOR
DOI：
10.1016/j.egypro.2014.11.821
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
T. Morel
中科院分区：
文献类型：
--
作者：
Paul Terrien;F. Lockwood;L. Granados;T. Morel
氢气工厂是炼油厂二氧化碳的重要来源。更准确地说，氢气厂是典型炼油厂中最大的排放者之一。因此，从氢气工厂捕获二氧化碳已经成为炼油和工业气体公司特别关注的问题，例如在世界各地拥有和运营着许多氢气工厂的液化空气公司。典型的氢气工厂使用蒸汽甲烷重整技术，并提供浓缩的二氧化碳流，这可能会导致比其他行业更低的二氧化碳捕获成本。一种从SMR工厂捕获二氧化碳的液化空气解决方案被称为CRYOCAPTMH2。这项技术使用低温净化从变压吸附装置的尾气中分离出二氧化碳。然后是膜分离，以同时提高二氧化碳捕获率和SMR生产率，同时提高从合成气中回收氢的能力。额外的产氢量在10%到20%之间。这项技术开发的第一个机会可能是EOR(提高石油采收率)的应用。事实上，正如将会显示的那样，这项技术为这种用途提供了足够低的二氧化碳捕获成本和合适的地点。这也将使捕获成本进一步降低，并加速采用技术，以此作为减少与地质储存相关的二氧化碳排放的一种方式。
Hydrogen plants are a significant source of CO2in refineries. More precisely, the hydrogen plant is one of the largest emitters in a typical refinery. Therefore CO2capture from hydrogen plants has become a particular point of attention for refining and industrial gas companies such as Air Liquide, who owns and operates numerous hydrogen plants throughout the world.Typical hydrogen plants use steam methane reforming technology and provide concentrated streams of CO2that can potentially lead to lower CO2capture costs than in other industries.One Air Liquide solution for CO2capture from SMR plants is called CRYOCAPTMH2. This technology uses cryogenic purification to separate the CO2from the off-gas of the PSA. This is followed by membrane separation in order to simultaneously increase the CO2capture rate and the SMR productivity as hydrogen recovery from syngas is increased. Extra hydrogen production ranges from 10 to 20%.A first opportunity for the development of this technology can be the EOR (Enhanced Oil Recovery) application. Indeed, as will be shown, this technology offers CO2capture costs low enough and at the right locations for such usage. This should also allow the cost of capture to be further reduced and accelerate the technology adoption as a way to reduce CO2emissions associated with geological storage.