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Solubility and scale prevention of gypsum in transportation pipes of well brine with salinities up to 5 M at temperature range of 278-298 K
Wang, Hongqing1; Wang, Daoguang1; Li, Zhibao1; Demopoulos, G. P.2; Li, ZB
2010-10-01
Source PublicationDESALINATION AND WATER TREATMENT
ISSN1944-3994
Volume22Issue:1-3Pages:78-86
AbstractThe results of work performed on reducing gypsum scale formation in transportation pipes of well salt brine are described. Two methods: seeding with calcium sulfate dihydrate and dilution of brine were proposed. With the first method, various mass and size distributions of seeds were introduced into an perspex reactor with well salt brine (NaCl: 300 g/L, Na(2)SO(4): 20 g/L) to investigate the factors that influence crystallization of calcium sulfate dihydrate, such as temperature, mass of seed crystals, and size distribution of seed crystals. The kinetics of calcium sulfate dihydrate growth at temperatures ranging between 5 and 25 degrees C were obtained. Results showed that the elimination of supersaturation was enhanced with increasing temperature and the dosage of seed crystal. It was also found that the more efficient in scale prevention was obtained when smaller seed crystals were employed. It was seen that the crystal growth of calcium sulfate dihydrate in brine was proportional to the square of supersaturation at the investigated temperatures. With the second method, results showed that a complete elimination of supersaturation was achieved when 4.3% water was added into the brine with the help of solubility determination of calcium sulfate dihydrate.
KeywordScale Prevention Well Brine Calcium Sulfate Dehydrate Supersaturation Seeded Crystal Growth
SubtypeArticle
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
DOI10.5004/dwt.2010.1595
Indexed BySCI
Language英语
WOS KeywordCALCIUM-SULFATE DIHYDRATE ; REVERSE-OSMOSIS MEMBRANES ; DEGREES C ; CRYSTALLIZATION ; SUPERSATURATION ; THERMODYNAMICS ; PRECIPITATION ; SYSTEM ; WATER ; NACL
WOS Research AreaEngineering ; Water Resources
WOS SubjectEngineering, Chemical ; Water Resources
WOS IDWOS:000283996900011
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/5375
Collection湿法冶金清洁生产技术国家工程实验室
Corresponding AuthorLi, ZB
Affiliation1.Chinese Acad Sci, Natl Engn Lab Hydromet Cleaner Prod Technol, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
2.McGill Univ, Dept Min & Mat Engn, Montreal, PQ H3A 2B2, Canada
Recommended Citation
GB/T 7714
Wang, Hongqing,Wang, Daoguang,Li, Zhibao,et al. Solubility and scale prevention of gypsum in transportation pipes of well brine with salinities up to 5 M at temperature range of 278-298 K[J]. DESALINATION AND WATER TREATMENT,2010,22(1-3):78-86.
APA Wang, Hongqing,Wang, Daoguang,Li, Zhibao,Demopoulos, G. P.,&Li, ZB.(2010).Solubility and scale prevention of gypsum in transportation pipes of well brine with salinities up to 5 M at temperature range of 278-298 K.DESALINATION AND WATER TREATMENT,22(1-3),78-86.
MLA Wang, Hongqing,et al."Solubility and scale prevention of gypsum in transportation pipes of well brine with salinities up to 5 M at temperature range of 278-298 K".DESALINATION AND WATER TREATMENT 22.1-3(2010):78-86.
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