石油与天然气化工Issue(1)：42-45,51,5.DOI:10.3969/j.issn.1007-3426.2016.01.008
基于粒度分布的 MRU脱盐闪蒸罐工艺参数优选
Optimization of parameters for MRU desalination flash drum process based on particle size distribution
摘要
Abstract
Monoethylene glycol regeneration & desalination system is one of key units in deepwater gas development ,often using evaporative crystallization and sedimentation theory to achieve high solubility salt (such as NaCl ) removal . T he main process parameters on the desalting flash tank , mainly optimized from the perspective of energy in the past ,can only show the effects of process parameters on evaporation , but not directly show the effects on the crystallization and particles settling & separation .To study the main process parameters of flash separator as a crystallizer ,the influence of temperature , pressure , and residence time on the crystal size distribution of NaCl in ethylene glycol solution was studied by laser diffraction particle size analyzer .The results showed that under the same conditions ,the higher temperature ,the more dispersive crystal size distribution and the smaller average particle size ;the higher degree of vacuum , the more dispersive crystal size distribution and the smaller average particle size ;too long or too short of residence time would cause the average crystal size to become small .For discussed solutions ,optimized process parameters are that flash temperature is 140℃ ,pressure is -80 kPa ,and the residence time is 5 minutes . The optimized parameters can achieve stable sedimentation separation and desalination by the verification of developed continuous experimental apparatus .关键词
闪蒸罐/工艺参数/NaCl/乙二醇/粒度分布Key words
flash drum/process parameter/sodium chloride/ethylene glycol/particle size distri-bution分类
能源科技引用本文复制引用
刘康,贺三,刘晓明,徐兆立,袁宗明..基于粒度分布的 MRU脱盐闪蒸罐工艺参数优选[J].石油与天然气化工,2016,(1):42-45,51,5.基金项目
国家自然科学基金“深水天然气水合物输送管道气液固三相流基础理论研究”（51474184），中海油重点项目“深水气田开发乙二醇再生装置脱一价盐系统关键技术研究”（CCL2013SKPS0170）。 （）
