Natural gas hydrogen production process of natural gas hydrogen production device
The hydrogen production process of natural gas mainly includes four processes : raw gas pretreatment, natural gas steam conversion, carbon monoxide conversion, and hydrogen purification. The following natural gas hydrogen production device-Suzhou Jiarui gas to introduce the natural gas hydrogen production process of the natural gas hydrogen production device :
The first is the raw material pretreatment step. The pretreatment here mainly refers to the desulfurization of the raw material gas. In the actual process operation, natural gas cobalt-molybdenum hydrogenation series zinc oxide is generally used as a desulfurizer to convert organic sulfur in natural gas into inorganic sulfur and then removed. The flow rate of raw natural gas treated here is large, so a higher pressure natural gas source can be used or a larger margin can be considered when selecting a natural gas compressor.
Secondly, the step of natural gas steam conversion is carried out. Nickel-based catalysts are used in the conversion furnace to convert alkanes in natural gas into raw gas with carbon monoxide and hydrogen as the main components.
Then it is carbon monoxide conversion, which reacts with water vapor in the presence of catalyst to generate hydrogen and carbon dioxide, and the main component is hydrogen and carbon dioxide conversion gas. According to the different conversion temperature, the conversion process of carbon monoxide can be divided into two types : medium temperature conversion and high temperature conversion. The temperature of high temperature conversion is about 360 °C, and the process of medium temperature conversion is about 320 °C. With the development of technical countermeasures, in recent years, the two-stage process setting of carbon monoxide high-temperature conversion and low-temperature conversion has been adopted, which can further save the consumption of resources. However, for the case where the carbon monoxide content in the conversion gas is not high, only medium temperature conversion can be used.
The last step is to purify hydrogen. The most commonly used hydrogen purification system is PAS system, also known as pressure swing adsorption purification and separation system. This system has low energy consumption, simple process and high purity of hydrogen. The purity of hydrogen can reach 99.99 % at the highest.
The above is organized and released by the natural gas hydrogen production device-Suzhou Jiarui gas. Suzhou Jiarui Gas System Co., Ltd.is a science and technology company specializing in the research and development of gas separation and purification technology. The company has a science and technology development building, gas separation device assembly plant. Provide users with pressure swing adsorption hydrogen production, nitrogen production, oxygen production, purification or removal of carbon dioxide and other services, looking forward to win-win cooperation with you.
