Field trials of hybrid acid-additive treatment for control of scale in MSF plants

✍ Scribed by F. Butt; F. Rahman; A. Al-Abdallah; H. Al-Zahrani; A. Maadhah; M. Amin

• Publisher: Elsevier Science
• Year: 1985
• Tongue: English
• Weight: 918 KB
• Volume: 54
• Category: Article
• ISSN: 0011-9164
• DOI: 10.1016/0011-9164(85)80026-6

✦ Synopsis

Field trials of the additive-only (Albrivap-G) treatment and the hybrid (acid+Albrivap DSB) treatment were carried out on an MSF unit at 112.8 C top brine temperature. The main objectives were to reduce the abnormally high frequency of acid cleaning with the existing additive treatment, and to test the techno-economic viability of the hybrid treatment.

The economics and the corrosion and thermal performance of the hybrid treatment were outstanding: the period of operation between consecutive acid cleanings was increased from 19 days to at least 164 days (5% months) and the frequency of acid cleaning was thereby reduced from seven to at most one per year of 5% operating months. The cost of scale control treatment was reduced by 50% while energy cost of the extraction steam was reduced by 11% resulting in considerable savings in the operating cost of the 3-unit MSF plant.