工业低温制冷系统实例介绍：天然气的二氧化碳分离装置

二氧化碳分离与资源化利用是当代工业领域中一个至关重要的议题。随着全球气候变暖问题日益严重，温室气体排放，特别是二氧化碳的排放，已经引起了全世界的广泛关注。因此，研究和发展高效的二氧化碳分离技术，对于减缓全球气候变暖、实现可持续发展具有重要意义。

Carbon dioxide separation and resource utilization is a crucial issue in contemporary industry. As the problem of global climate warming becomes increasingly serious, greenhouse gas emissions, especially carbon dioxide emissions, have attracted widespread attention around the world. Therefore, research and development of efficient carbon dioxide separation technology is of great significance for mitigating global climate warming and achieving sustainable development.

在众多的二氧化碳分离技术中，低温分离法以其高效、稳定的特点受到广泛关注。低温分离法利用二氧化碳与其他气体在低温下的不同物理性质，通过冷却和压缩的方式，使二氧化碳从混合气体中冷凝分离出来。这种方法具有分离效果好、纯度高的优点，尤其适用于大规模工业生产中二氧化碳的回收。

Among the many carbon dioxide separation technologies, low-temperature separation method has attracted widespread attention due to its high efficiency and stability. The low-temperature separation method uses the different physical properties of carbon dioxide and other gases at low temperatures to condense and separate carbon dioxide from the mixed gas through cooling and compression. This method has the advantages of good separation effect and high purity, and is especially suitable for the recovery of carbon dioxide in large-scale industrial production.

除了低温分离法，解析气回收也是一种重要的二氧化碳分离技术。在工业生产过程中，往往会产生大量的富含二氧化碳的废气。通过解析气回收技术，可以有效地将这些废气中的二氧化碳分离出来，实现资源的循环利用。这种技术不仅有助于降低生产成本，还能减少温室气体的排放，实现环保和经济效益的双赢。

In addition to cryogenic separation methods, analytical gas recovery is also an important carbon dioxide separation technology. In the industrial production process, a large amount of waste gas rich in carbon dioxide is often produced. Through analytical gas recovery technology, the carbon dioxide in these waste gases can be effectively separated to achieve resource recycling. This technology not only helps reduce production costs, but also reduces greenhouse gas emissions, achieving a win-win situation for environmental protection and economic benefits.

气体纯化是二氧化碳分离过程中的另一个关键环节。由于工业生产中产生的气体往往含有各种杂质，因此需要对这些气体进行纯化，以满足后续利用的要求。气体纯化的方法多种多样，包括吸附、吸收、膜分离等。通过选择合适的纯化方法，可以有效地去除气体中的杂质，提高二氧化碳的纯度和利用率。

Gas purification is another key step in the carbon dioxide separation process. Since the gases produced in industrial production often contain various impurities, these gases need to be purified to meet the requirements for subsequent utilization. There are many methods for gas purification, including adsorption, absorption, membrane separation, etc. By choosing an appropriate purification method, impurities in the gas can be effectively removed and the purity and utilization of carbon dioxide can be improved.

在氢气的生产过程中，煤气化制氢、甲烷重整制氢、甲醇裂解制氢以及水电解制氢等方法都会产生一定量的二氧化碳。因此，在这些过程中实施二氧化碳的分离和回收，对于提高氢气的生产效率、降低能耗和减少温室气体排放具有重要意义。通过采用先进的二氧化碳分离技术，可以将这些过程中产生的二氧化碳进行高效回收，并用于其他工业过程或作为化工原料进行再利用。

In the process of hydrogen production, methods such as coal gasification hydrogen production, methane reforming hydrogen production, methanol cracking hydrogen production, and water electrolysis hydrogen production will all produce a certain amount of carbon dioxide. Therefore, the separation and recovery of carbon dioxide in these processes is of great significance for improving hydrogen production efficiency, reducing energy consumption, and reducing greenhouse gas emissions. By using advanced carbon dioxide separation technology, the carbon dioxide produced in these processes can be efficiently recovered and used in other industrial processes or reused as chemical raw materials.

催化裂化是一种广泛应用于石油加工领域的技术，它通过将重质烃类转化为轻质烃类来提高石油的利用率。在催化裂化过程中，会产生一定量的二氧化碳。通过优化催化裂化工艺和引入二氧化碳分离技术，可以有效地降低这一过程中二氧化碳的排放，实现资源的最大化利用。

Catalytic cracking is a technology widely used in petroleum processing to improve petroleum utilization by converting heavy hydrocarbons into light hydrocarbons. During the catalytic cracking process, a certain amount of carbon dioxide is produced. By optimizing the catalytic cracking process and introducing carbon dioxide separation technology, carbon dioxide emissions in this process can be effectively reduced and maximum utilization of resources can be achieved.

再生烟气是工业生产中另一种重要的二氧化碳来源。在许多工业生产过程中，如钢铁冶炼、水泥生产等，都会产生大量的再生烟气。这些烟气中富含二氧化碳，通过采用合适的分离技术，可以将其中的二氧化碳进行回收和利用。这不仅可以减少温室气体的排放，还可以为工业生产提供额外的原料来源。

Regeneration flue gas is another important source of carbon dioxide in industrial production. In many industrial production processes, such as steel smelting, cement production, etc., a large amount of regeneration flue gas will be generated. These flue gases are rich in carbon dioxide, which can be recovered and utilized by using appropriate separation technology. This not only reduces greenhouse gas emissions but also provides an additional source of raw materials for industrial production.

醇胺法是一种常用的烟气碳捕集技术。它利用醇胺类化合物与二氧化碳之间的化学反应，将烟气中的二氧化碳吸收并转化为稳定的化合物。这种方法具有操作简便、吸收效率高的优点，适用于大规模烟气处理。通过醇胺法捕集到的二氧化碳可以用于生产尿素、甲醇等化工产品，实现资源的循环利用。

The alcohol amine method is a commonly used flue gas carbon capture technology. It uses the chemical reaction between alcoholamine compounds and carbon dioxide to absorb and convert carbon dioxide in the flue gas into stable compounds. This method has the advantages of simple operation and high absorption efficiency, and is suitable for large-scale flue gas treatment. The carbon dioxide captured through the alcoholamine method can be used to produce chemical products such as urea and methanol to achieve resource recycling.

在解吸条件的选择方面，需要根据具体的工艺要求和操作条件进行优化。解吸条件的合理设定不仅影响二氧化碳的回收效率，还关系到再生能耗的大小。因此，在实际应用中，需要根据实际情况进行调整和优化，以实现最佳的分离效果和经济效益。

The selection of desorption conditions needs to be optimized according to specific process requirements and operating conditions. The reasonable setting of desorption conditions not only affects the recovery efficiency of carbon dioxide, but also affects the amount of regeneration energy consumption. Therefore, in practical applications, it needs to be adjusted and optimized according to the actual situation to achieve the best separation effect and economic benefits.

天然气调峰是保障天然气供应稳定性的重要手段。在天然气调峰过程中，通过合理调整天然气的生产和输送计划，可以确保天然气供应的稳定性和可靠性。同时，在天然气调峰过程中也可以实施二氧化碳的分离和回收，进一步提高天然气的利用效率和环保性能。

Natural gas peak shaving is an important means to ensure the stability of natural gas supply. During the natural gas peak shaving process, the stability and reliability of natural gas supply can be ensured by rationally adjusting the natural gas production and transmission plan. At the same time, carbon dioxide separation and recovery can also be implemented during the natural gas peak shaving process to further improve the utilization efficiency and environmental protection performance of natural gas.

甲醇裂解是另一种重要的氢气生产方法，同时也会产生二氧化碳。通过引入二氧化碳分离技术，可以在甲醇裂解过程中实现二氧化碳的高效回收，并将其用于其他工业过程或作为化工原料进行再利用。这不仅提高了甲醇裂解的经济效益，还有助于减少温室气体排放。

Methanol cracking is another important hydrogen production method, which also produces carbon dioxide. By introducing carbon dioxide separation technology, carbon dioxide can be efficiently recovered during the methanol cracking process and used in other industrial processes or reused as chemical raw materials. This not only improves the economic benefits of methanol cracking, but also helps reduce greenhouse gas emissions.

以下为案例介绍

工业低温制冷系统实例介绍：天然气的二氧化碳分离装置

The following is a case introduction

Industrial low-temperature refrigeration system example introduction: natural gas carbon dioxide separation device

二氧化碳(CO2)通常存在于天然气中。为了满足管输要求，有必要对CO2进行分离是必要的。工业低温制冷系统是实现这一目标的关键技术，通过精确控制温度，有效分离二氧化碳，提高天然气纯度。

Carbon dioxide (CO2) is commonly found in natural gas. In order to meet pipeline transportation requirements, it is necessary to separate CO2. Industrial low-temperature refrigeration systems are the key technology to achieve this goal. Through precise temperature control, carbon dioxide is effectively separated and the purity of natural gas is improved.

二氧化碳分离装置流程图如下。

The flow chart of the carbon dioxide separation device is as follows.

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经验丰富：专业团队一对一，提供解决方案；远程操作：全自动化系统；撬块化：安装更便捷。

Hangye Energy Advantages:

Rich experience: professional team provides one-on-one solutions; remote operation: fully automated system; skid-based: installation is more convenient.

航烨能源联合中科院多年技术深耕，提供一系列关于二氧化碳低温液化回收系统的交付方案。由经验丰富、训练有素的服务工程师团队安装调试，欢饮垂询。

Hangye Energy has cooperated with the Chinese Academy of Sciences for many years of technical development to provide a series of delivery solutions for carbon dioxide low-temperature liquefaction recovery systems. It is installed and debugged by a team of experienced and well-trained service engineers. Please feel free to inquire.