(162a) Methanol Distribution in Amine Systems and Its Impact on Plant Performance | AIChE

(162a) Methanol Distribution in Amine Systems and Its Impact on Plant Performance

Authors 

Govindarajan, A. - Presenter, Optimized Gas Treating, Inc.

Methanol injection into natural gas streams is commonly used to prevent hydrate formation and icing.  Later, when the gas is scrubbed, the residual methanol enters and tends to build up in the amine treating system.  Aqueous amines tend to absorb methanol present in the feed gas.  This increases the solubility of other hydrocarbons and affects acid gas vapor-liquid equilibrium.  Additionally, significant amounts of methanol then enter in the acid gas fed to the sulfur unit, causing catalyst degradation, lower sulfur recoveries and higher sulfur emissions.  Existing simulation tools do not allow for simulation of methanol in amine systems. Recently, we introduced the ability to simulate methanol in amine systems on a mass transfer rate basis.  This paper details how methanol distributes in amine systems, it examines the effectiveness of a water wash stream upstream of the amine absorber, and it quantifies its effect on reboiler energy usage in a typical LNG unit.

Checkout

This paper has an Extended Abstract file available; you must purchase the conference proceedings to access it.

Checkout

Do you already own this?

Pricing

Individuals

2015 AIChE Spring Meeting and 11th Global Congress on Process Safety
AIChE Pro Members $150.00
AIChE Graduate Student Members Free
AIChE Undergraduate Student Members Free
AIChE Explorer Members $225.00
Non-Members $225.00
15th Topical Conference on Gas Utilization only
AIChE Pro Members $100.00
Fuels and Petrochemicals Division Members Free
AIChE Graduate Student Members Free
AIChE Undergraduate Student Members Free
AIChE Explorer Members $150.00
Non-Members $150.00