Absorption

Can We Count on Good Turndown in Two-Pass Moving-Valve Trays?

November
2018
Reactions and Separations
Matthew R. Olsson, Henry Z. Kister
At turndown, the efficiency of two-pass moving-valve trays may be lower than expected due to maldistribution of the vapor within the trays. This article explores this maldistribution and describes ways to alleviate it.

Challenges in the Application of Adsorbent Technologies for Midstream Contaminants Control

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 28, 2017
Adsorbent technologies have been used in the midstream industry for contaminant purification from natural gas. Molecular sieves are the product of choice for the deep dehydration required by Liquefied Natural Gas and midstream facilities. Also, adsorbents can remove other impurities such as carbon dioxide, hydrogen sulfide, mercaptans, and mercury. There are different mechanisms for adsorption, some of which are regenerable and some are not. Advances in adsorbents provides a technology overview and high level guidelines to design, operation, and troubleshooting.

Effectiveness of Water Sprays in Mitigating Toxic Releases

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 28, 2017
Chemical manufacturing operations must consider and prepare for release of toxic chemicals, such as anhydrous ammonia, anhydrous hydrofluoric acid,...

Modeling Reactive Absorption

January
2009
Reactions and Separations
Eugeny Kenig, Panos Seferlis
Effective modeling of reactive absorption enhances system design, improves experiment planning for parameter-estimation, and facilitates process operation and control decisions.
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