Heat Stable Salts Content in Lean Amine Solutions

Heat Stable Salts Content in Lean Amine Solutions Are a Unit Operating Procedure # 3 Lab OPS-LB-AL-011 Job Hazards Yes Job Hazards Access and Egress Moving Parts Activities of Others Noise Adverse Weather Rail Movement Chemical Exposure Sharp Edges Electricity Slips, Trips, and Falls Fatigue Static Electricity Fire and Explosion Trip Injuries Ground Contamination Trapped Pressure Manual Handling Working at Height Revision # Certified by Scope / Objective Yes Date Page 09. 201 1 1 of 1 PPE Standard (SSP-0011) Use Y Full Face Shield / Goggles Hood Clothing—Chemical Protection Gloves—Chemical Personal Fall Protection References / Documents Respirator / Filter Mask q MSDS on gasoline. q Unit Safe Upper & Lower Limits Spreadsheet Supplied Air Other: Equipment Materials and Reagents Special Instructions Environmental Heat Stable Salts Content in Lean Amine Solutions 1 Pour sample(s) into 500 ml Erlenmeyers, attach condenser tubes and place on hot plate. NOTE: Be sure to turn on adequate water flow to ensure condenser tubes are sufficiently cooled. 2 Reflux vigorously for 6 hours to expel any CO 2 and H 2 S present in sample(s). 3 Fill plastic cup (leave some room for addition of titrant) with Methanol. 4 On mettler titrator using p. H electrode, manually titrate the methanol with 0. 5 N KOH until the p. H adjusts to 11. 2. 5 Weigh approximately 20 ml of the refluxed amine sample into a plastic titration cup and record weight to 2 decimal places. 6 Combine 20 ml of the adjusted 11. 2 p. H methanol with the 20 ml amine sample. 7 Place the combined sample on the titrator and determine the p. H. 8 If the p. H is below 11. 2, titrate the sample manually with 0. 5 N KOH until the p. H of 11. 2 is restored. 9 Record the volume of KOH required to restore the p. H to 11. 2. 10 If the p. H of the combined sample was 11. 2 or greater, report result as 0. 11 If the p. H of the combined sample was below 11. 2, calculate the result as follows: Heat Stable Salts = (ml KOH)(0. 5)(11. 90) weight of 20 ml amine sample 12 Rinse p. H electrode with DI water and store in DI water. 13 Report result in Labworks to 2 decimal places. Completed Date: Note: Prepared By: Approved By: This procedure is only valid at the time of printing. The control version can be found on the Meraux Refinery intranet.