Usos Del Amoniaco

Amine Gas Sweetening Solutions

Amine gas sweetening is a proven technology that removes H2S and CO2 from natural gas and liquid hydrocarbon streams through absorption and chemical reaction. Each of the amines offers distinct advantages to specific treating problems.

• MEA (Monoethanolamine)

o Used in low pressure natural gas treatment applications requiring stringent outlet gas specifications

• MDEA (Methyldiethanolamine)

o Has a higher affinity for H2S than CO2 which allows some CO2 "slip" while retaining H2S removal capabilities.

• DEA (Diethanolamine)

o Used in medium to high pressure treating

o does not require reclaiming, as do MEA and DGA systems.

• FORMULATED (SPECIALTY) SOLVENTS

o A variety of blended or specialty solvents are available on the market.

Amine Gas Sweetening Process

1. Sour gas enters the contactor tower and rises through the descending amine.

2. Purified gas flows from the top of the tower.

3. The amine solution is now considered Rich and is carrying absorbed acid gases.

4. The Lean amine and Rich amine flow through the heat exchanger, heating the Rich amine.

5. Rich amine is then further heated in the regeneration still column by heat supplied from thereboiler. The steam rising through the still liberates H2S and CO2, regenerating the amine.

6. Steam and acid gases separated from the rich amine are condensed and cooled.

7. The condensed water is separated in the reflux accumulator and returned to the still.

8. Hot, regenerated, lean amine is cooled in a solvent aerial cooler and circulated to the contactor tower, completing the cycle.

Typical Amine Plant Standard Features

1. 100% Pump Standby

2. ASME Code and National Registration on all vessels

3. Shell and Tube or Plate Frame Heat Exchangers

4. B31.3 compliant piping

5. Total Custom Electrical Systems and Instrumentation

6. Full Flow Carbon Filtration

7. Engineered Corrosion Control

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