Gasification processes produces various acidic gasses such as carbon sulfide and carbon dioxide, which is required to remove as they causes serious health hazards. Worldwide environment regulation and norms make its mandatory and obligatory for all companies to take care of ecosystem, which necessities the use of a brilliant acid gas treatment method which prove both economical and eco friendly.
Methods
Different methods are used for removing harmful gasses, which are produced during various processes. The foremost method is removing gasses with the help of an absorber, almost all oil and petro chemical industries uses this method in which liquid and gas comes in contact with each other; this process is implemented in an absorption tower. However as the acids present in the gasses vary in certain degree, therefore different solvent are used for removal.
Chemical solvents are used when the acidic gasses present are less than 1 ppm, solvents such as Rectisol and Selexol are used to remove sulfur for chemical synthesis application. In power generation applications, Methyl Diethanolamine is used, in chemical and physical processes the Syngas is washed with solvent which removes H2S.
Methods
Different methods are used for removing harmful gasses, which are produced during various processes. The foremost method is removing gasses with the help of an absorber, almost all oil and petro chemical industries uses this method in which liquid and gas comes in contact with each other; this process is implemented in an absorption tower. However as the acids present in the gasses vary in certain degree, therefore different solvent are used for removal.
Chemical solvents are used when the acidic gasses present are less than 1 ppm, solvents such as Rectisol and Selexol are used to remove sulfur for chemical synthesis application. In power generation applications, Methyl Diethanolamine is used, in chemical and physical processes the Syngas is washed with solvent which removes H2S.
In this process of acid gas treatment clean gas is sent downstream for processing, solvent rich acid gas is send to the bottom of the tower, where it is sent to the regenerator. H2s exits from the top of the regenerator and send to sulfur recovery system, which produces a byproduct of sulfur. The solvent is then cooled and then recycled back to start the abortion process again.