Tag Archives for Acid Gas Treating

Amine Circulation Rates

The circulation rates for amine systems can be determined from the acid gas flow rates by selecting a solution concentration and an acid gas loading. The following equations can be used: For design, the following solution strengths and loadings are … Continue reading

19. September 2009 by Jack
Categories: Design Procedures for Amine System | Tags: , | Leave a comment

Design Procedures For Iron Sponge Unit

The iron-sponge process generally uses a single vessel to contain the hydrated ferric oxide wood shavings. A drawing of an iron-sponge unit showing typical provisions for internal and external design requirements was presented in Figure 7-3. The inlet gas line … Continue reading

19. September 2009 by Jack
Categories: Acid Gas Treating | Tags: , | Leave a comment

Acid Gas Treating – Process Selection

Each of the previous treating processes has advantages relative to the others for certain applications; therefore, in selection of the appropriate process, the following facts should be considered: 1. The type of acid contaminants present in the gas stream. 2. … Continue reading

19. September 2009 by Jack
Categories: Acid Gas Treating | Tags: | 1 comment

Gas Permeation

Gas permeation is based on the mass transfer principles of gas diffusion through a permeable membrane. In its most basic form, a membrane separation system consists of a vessel divided by a single flat membrane into a high- and a … Continue reading

19. September 2009 by Jack
Categories: Gas Sweetening Processes | Tags: | Leave a comment

Distillation

The Ryan-Holmes distillation process uses cryogenic distillation to remove acid gases from a gas stream. This process is applied to remove CO2 for LPG separation or where it is desired to produce CO2 at high pressure for reservoir injection.

19. September 2009 by Jack
Categories: Gas Sweetening Processes | Tags: | Leave a comment

Sulfide Scavengers

Sour gas sweetening may also be carried out continuously in the flowline by continuous injection of H^S scavengers, such as amine-aldehyde condensates. Contact time between the scavenger and the sour gas is the most critical factor in the design of … Continue reading

19. September 2009 by Jack
Categories: Gas Sweetening Processes | Tags: | Leave a comment

Molecular Sieves

The molecular sieve process uses synthetically manufactured solid crystalline zeolite in a dry bed to remove gas impurities. The crystalline structure of the solids provides a very porous solid material with all the pores exactly the same size. Within the … Continue reading

17. September 2009 by Jack
Categories: Solid Bed Absorption | Tags: | Leave a comment

Zinc Oxide

The zinc oxide process is similar to the iron sponge process. It uses a solid bed of granular zinc oxide to react with the H2S to form water and zinc sulfide: The rate of reaction is controlled by the diffusion … Continue reading

17. September 2009 by Jack
Categories: Solid Bed Absorption | Tags: | Leave a comment

SulfaTreat

SulfaTreat® process is similar to the iron sponge process. It uses a patented proprietary mixture of ferric oxide and triferric oxide to react with H2O to sweeten gas streams. In SulfaTreat® process the iron oxides are supported on the surface … Continue reading

17. September 2009 by Jack
Categories: Solid Bed Absorption | Tags: , , | Leave a comment

Acid Gas Treating #1

Next to sales contract specifications, corrosion protection ranks highest among the reasons for the removal of acid gases. The partial pressure of the acid gases may be used as a measure to determine whether treatment is required. The partial pressure … Continue reading

17. September 2009 by Jack
Categories: Acid Gas Treating | Tags: | Leave a comment

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