Solvent Absorption Processes
writing a report and 7 MIN PRESENTATION.
1-Introduction of different solvent absorption processes used for gas treatment (industry experience)
1.1-Gas sweetening (purpose; basic process description; type of impurities removed, general types of solvents)
1.2- Tail gas treatment
1.3- Purification of the regeneration gas from molecular sieve dehydration Overall Shah plant process (well fluid characteristics/ process block diagram/ end products
2-Sour Gas DGA Sweetening and solvent regeneration process applied at Shah plant
– Basic process – schematic diagram (PFD) feed sour gas composition/ sweet gas composition
Characteristics of DGA- main reactions/loading capacity for H2S and CO2 relative to (compared with ) other amines
3-TGT Flexsorb process applied at Shah plant
– Basic process – schematic diagram (PFD) feed acid gas (waste acid gas from SRU) main components (H2S/ CO2/ N2/other gas impurities)
Characteristics of Flexsorb – absorbent selectivity for H2S versus CO2 (compared with other amines)
Requirement of total SO2 emission- after incinerator max. 500 ppm(vol)
4- Selexol process applied at Shah plant for purification of the regeneration gas from molecular sieve dehydration
Characteristics of Selexol process – types of impurities absorbed: mercaptans and sulfides
Type of absorption solvent: physical solvent, no reaction