18146884. DIGLYCOLAMINE PROCESSING FOLLOWING ACID GAS REMOVAL FROM A GAS STREAM simplified abstract (Saudi Arabian Oil Company)
Contents
DIGLYCOLAMINE PROCESSING FOLLOWING ACID GAS REMOVAL FROM A GAS STREAM
Organization Name
Inventor(s)
Faisal Dagash Alboqami of Khobar (SA)
DIGLYCOLAMINE PROCESSING FOLLOWING ACID GAS REMOVAL FROM A GAS STREAM - A simplified explanation of the abstract
This abstract first appeared for US patent application 18146884 titled 'DIGLYCOLAMINE PROCESSING FOLLOWING ACID GAS REMOVAL FROM A GAS STREAM
The patent application discusses the use of diglycolamine as an absorbent for the absorption of acid gases from a gas stream.
- The method involves obtaining a spent aqueous amine solution from an absorber tower.
- Acid gases are removed from the spent solution in a regeneration tower to form a regenerated aqueous amine solution containing diglycolamine and bis-(2-hydroxyethoxyethyl)urea.
- A portion of the regenerated solution is introduced to a reclaimer under thermal conditions to convert bis-(2-hydroxyethoxyethyl)urea back to diglycolamine.
- The reclaimer is heated with steam and cooled with a diglycolamine stream.
Potential Applications: - Industrial gas purification processes - Environmental protection in gas emissions control
Problems Solved: - Efficient removal of acid gases from gas streams - Regeneration of spent absorbent solutions
Benefits: - Cost-effective gas purification - Reduced environmental impact of gas emissions
Commercial Applications: - Gas processing plants - Chemical manufacturing facilities
Questions about the technology: 1. How does the thermal reclaimer process effectively convert bis-(2-hydroxyethoxyethyl)urea back to diglycolamine? 2. What are the specific acid gases that can be effectively absorbed using diglycolamine as the absorbent?
Original Abstract Submitted
Absorption of one or more acid gases from a gas stream may take place using diglycolamine as an absorbent. Methods for processing the absorbent after acid gas absorption may comprise: obtaining an at least partially spent aqueous amine solution from an absorber tower; removing at least a portion of the one or more acid gases from the at least partially spent aqueous amine solution in a regeneration tower to form an at least partially regenerated aqueous amine solution comprising diglycolamine and bis-(2-hydroxyethoxyethyl)urea; and introducing at least a first portion of the at least partially regenerated aqueous amine solution to a reclaimer under thermal conditions effective to revert at least a majority of the bis-(2-hydroxyethoxyethyl) urea to diglycolamine. The reclaimer is heated with a steam input that is in indirect contact with the at least partially regenerated aqueous amine solution and cooled with at least a diglycolamine stream.
