Selection Criteria for Antifoams Used in the Acid Gas Sweetening Process

2021 ◽  
Author(s):  
E. L. S. Ng ◽  
K. K. Lau ◽  
B. Partoon ◽  
S. F. Lim ◽  
S. Y. Chin
Keyword(s):  
Selection Criteria ◽  
Acid Gas ◽  
Gas Sweetening

scholarly journals Simulation and Optimization of the Acid Gas Absorption Process by an Aqueous Diethanolamine Solution in a Natural Gas Sweetening Unit

ACS Omega ◽  
2021 ◽  
Author(s):  
Nasrin Salimi Darani ◽  
Reza Mosayebi Behbahani ◽  
Yasaman Shahebrahimi ◽  
Afshin Asadi ◽  
Amir H. Mohammadi
Keyword(s):  
Natural Gas ◽  
Gas Absorption ◽  
Absorption Process ◽  
Acid Gas ◽  
Simulation And Optimization ◽  
Gas Sweetening ◽  
Natural Gas Sweetening

scholarly journals A new method to simulate acidic gas sweetening on a laboratory scale

2016 ◽  
Author(s):  
Julie Murison
Keyword(s):  
Laboratory Scale ◽  
Testing Equipment ◽  
New Method ◽  
Gas Pipelines ◽  
Acid Gas ◽  
Gas Sweetening ◽  
Testing Protocol

In this article, a new testing equipment and protocol in order to evaluate acid gas scavengers for direct chemical injection into gas pipelines is described. The testing protocol address several shortcomings in previous accepted tests which did not take into account the formation of a spray of the product, or tested the product in its final formulation.

Advanced Control Solution for a Refinery Gas Sweetening Process

2017 ◽  
Vol 68 (8) ◽  
pp. 1847-1853
Author(s):  
Alina Simona Baiesu ◽  
Marian Popescu
Keyword(s):  
Hydrogen Sulfide ◽  
Control Structure ◽  
Simulation Software ◽  
Control Solution ◽  
Acid Gas ◽  
The Third ◽  
Gas Sweetening ◽  
Gas Removal ◽  
Advanced Control ◽  
Refinery Gas

Gas sweetening unit, also known as acid gas removal unit, is a wide used unit in refineries and petrochemical plants and refers to a group of processes that use different amines such DiEthanolAmine (DEA) to remove the hydrogen sulfide (H2S) from gases, in order to use them as fuel to different furnaces from other processing units. If the hydrogen sulfide is not well removed, will lead to furnaces tubular corrosion and therefore will generate loss in refractory properties. Also, the emission values of the exhaust gases will not be in accordance with the environmental regulations. The paper outlines the main results obtained by authors concerning the advanced control solution for a refinery gas sweetening unit and contains three parts. The first part outlines the results of the dynamic gas sweetening process investigation using HYSYS� simulation software. The second part presents the proposed structure of the advanced control system and the third part outlines the results obtained using the control structure in order to remove as good as possible the H2S content from residual gases.

Current Trends in the Training and Utilization of Paraprofessionals in Speech and Language Programs

1991 ◽  
Vol 22 (2) ◽  
pp. 51-59 ◽  
Author(s):  
Kathy L. Coufal ◽  
Allen L. Steckelberg ◽  
Stanley F. Vasa
Keyword(s):  
Selection Criteria ◽  
Job Descriptions ◽  
Paraprofessional Training ◽  
Language Programs ◽  
Program Administrators ◽  
Current Trends ◽  
Training And Supervision ◽  
Communicative Disorders ◽  
Supervision Practices ◽  
A Current

Administrators of programs for children with communicative disorders in 11 midwestern states were surveyed to assess trends in the training and utilization of paraprofessionals. Topics included: (a) current trends in employment, (b) paraprofessional training, (c) use of ASHA and state guidelines, and (d) district policies for supervision. Selection criteria, use of job descriptions, training programs, and supervision practices and policies were examined. Results indicate that paraprofessionals are used but that standards for training and supervision are not consistently applied across all programs. Program administrators report minimal training for supervising professionals.

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