The world has developed many process technologies for MDEA pump natural gas decarbonization, mainly for the separation and removal of carbon dioxide in natural gas. Because carbon dioxide is corrosive in the presence of an aqueous medium, it will cause a certain degree of corrosion to the tubing, so it will cause a relatively huge economic loss, and it will also cause a series of safety hazards and turn it into a social problem. Therefore, in order to prevent these occurrences, we have strict standards for the carbon content in natural gas.
There are many types of MDEA pump natural gas decarbonization treatment, which are used to deal with natural gas decarbonization treatment in different situations. Because decarbonization is mainly aimed at carbon dioxide in natural gas, natural gas has its particularity so that some conventional methods of separating carbon dioxide cannot be used for natural gas decarbonization. In the conventional decarbonization method, the method of humidification and high temperature will cause a certain thermal reaction to occur in the decarbonization process, which is obviously not applicable in the decarbonization treatment of natural gas.
Wet decarburization treatment
Wet decarburization treatment is also a common treatment method for removing carbon dioxide. The process principle is to absorb carbon dioxide and then release and separate the carbon dioxide after the natural gas containing carbon dioxide is fully contacted with the solvent. In addition to absorbing carbon dioxide in natural gas, the release and separation of carbon dioxide in solvents is also an important part of the wet process. Therefore, the selection and preparation of solvents is the key to the wet process. Good solvent selection and new solvents are configured to improve the wet process. The wet process is relatively simple in operation, and the technical requirements are not very high. It can basically meet the decarbonization requirements in natural gas.
Alcohol ammonia treatment
The alcohol-ammonia method is actually a member of the wet process, because its high efficiency and development are gradually independent. The special solvent in the wet process refers to the MDEA solvent in the alcohol-ammonia process. Since the development of the alcohol ammonia process, the improved version of the MDEA solvent is mainly based on the MDEA aqueous solution, and then different types of additives are added to other impurities that need to be removed from the natural gas, so that the natural gas can be removed during the decarbonization process. Some other impurities make the processed natural gas more pure.
The main advantages of the alcohol-ammonia process are low resource consumption, large processing capacity, high processing efficiency, etc. The purification degree of natural gas is also relatively high, which not only makes the carbon dioxide content in natural gas lower than national requirements, but also absorbs other impurities in natural gas. Because of the high stability of alcohol-ammonia solution, there is no need to add other solvents as corrosion inhibitors in the process. Therefore, the alcohol-ammonia method is currently the solution for most natural gas decarbonization treatments.
Today, when the development of natural gas is becoming more and more mature, the decarbonization process of natural gas is of great significance in terms of economic benefits and social security. After our analysis and research, only by choosing a suitable decarbonization process can natural gas be carried out efficiently, safely and stably. Decarburization treatment.
