3 replies to this topic

[cnu879]

Hi all,

Could you please suggest the advantages and disadvantages Slip stream MEG Regeneration & Reclamation process over Full Stream process and process selection criterion for those two process.

Thanks & Regards,
Sriniiiii

[Bobby Strain]

You regenerate the whole stream for water removal. Contaminant level will determine how much reclaiming is needed. Best to talk to process technology and equipment suppliers if you need to buy a system.

Bobby

[SUPRIYAPRA]

Full Stream Concept
Removes all the salts to prevent scaling in the pipelines

Slip Stream Concept
Removes the necessary salts to prevent scaling in the pipelines

• Slip Stream more suited for units with periods with no/low formation water production
• Slip Stream allows larger reconcentration trains, thus suited for bigger capacities
• Typically, Slip Stream is smaller in size
• Slip Stream needs more advanced Pre-treatment (to remove the low soluble salts)
• Reduced Criticality of Reclaimer

Full stream reclamation
■ The entire feed is vaporized –
Reconcentration and reclamation in one operation

Slip stream reclamation
■ Conventional reconcentration (water removal) process at
atmospheric pressure – Saves energy costs and eases operation
■ The reclaimer operation (high solubility salts removal) is
performed on a slip stream of the regenerated MEG
■ High availability – Reclaimer only required during formation water
production otherwise bypassed
■ Reuse of chemicals (corrosion inhibitor / pH stabilizer)

[cnu879]

Thanks Dhiren and Bobby for your reply.


Full Stream MEG regeneration and reclamation process removing all the soluble salts by fully reclaiming the MEG. All solids, dissolved salts and chemicals are removed by vaccum evaporation of Water + MEG.




Please suggest favourable vaccum conditions (Pressure & Temparature) for Flash Separator and Regeneration Distillation Column and associated equipments.

Please find the attached Full Stream MEG Regeneration Process schematic sketch.


Thanks
Sriniii

Attached Files

•  Full Steram MEG Reclamation Process.doc   40.5KB   112 downloads