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摘要? 頁(yè)巖氣壓裂返排液的脫鹽處理有助于實(shí)現(xiàn)廢水回用和合理排放,，脫鹽處理過程的建模與能效分析對(duì)工藝優(yōu)化和高效運(yùn)行具有重要的指導(dǎo)意義,。頁(yè)巖氣壓裂返排液膜法脫鹽過程包括預(yù)處理工藝(電絮凝+超濾)和反滲透,。針對(duì)反滲透膜組件,，本文采用溶解擴(kuò)散模型來描述傳質(zhì)過程?；趯?shí)驗(yàn)數(shù)據(jù),，對(duì)膜組件的純水滲透性常數(shù)和鹽的傳質(zhì)系數(shù)進(jìn)行計(jì)算,。最后，建立了能效和經(jīng)濟(jì)評(píng)估模型,，并考慮了引入能量回收系統(tǒng)后對(duì)脫鹽處理過程經(jīng)濟(jì)性和能效的影響,。結(jié)果表明，在引入能量回收系統(tǒng)后,，總能耗降低了 20.45%,，泵的年度運(yùn)行費(fèi)用降低了15.29%。

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關(guān)鍵詞 ：壓裂返排液,脫鹽,反滲透,能效,數(shù)學(xué)模型

Abstract：

The desalination treatment of shale gas fracturing flowback wastewater can be used for the wastewater reuse and reasonable discharge. The modeling and energy efficiency analysis of desalination treatment process can guide the process optimization and efficient operation. The membrane-based desalination process of shale gas fracturing flowback wastewater includes the pretreatment process (electrocoagulation and ultrafiltration) and reverse osmosis. For the membrane module of reverse osmosis unit, the solution-diffusion model is adopted to describe the mass transfer process. Furthermore, the water permeability constant and the mass transfer coefficient of salt were calculated based on the experimental data. Finally, the energy efficiency and economic evaluation model is established, and the influence of the energy recovery system on the economy and energy efficiency of the desalination process is considered. The results show that the total energy consumption is reduced by 20.45%, and the annual operation cost of the pump is reduced by 15.29% with the help of energy recovery system.

Key words：宋尚飛, 劉軒章, 陳宏舉, 康琦, 李宸軒, 鄧濤, 吳海浩, 史博會(huì), 宮敬. PID控制參數(shù)對(duì)重力式三相分離器生產(chǎn)工藝的影響. 石油科學(xué) 通報(bào), 2023, 02: 179-192 SONG Shangfei, LIU Xuanzhang, CHEN Hongju, KANG Qi, LI Chenxuan, DENG Tao, WU Haihao, SHI Bohui, GONG Jing. The influence of PID control parameters on the production process of gravity three-phase separator. Petroleum Science Bulletin, 2023, 02: 179-192.

收稿日期: 2023-04-28 ????

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基金資助:國(guó)家自然科學(xué)基金(No.51708556) 資助

通訊作者: [email protected]

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鄧春, 龔雅妮, 孫曉剛, 張壯, 孔繁鑫. 頁(yè)巖氣壓裂返排液膜法脫鹽過程建模與能效分析. 石油科學(xué)通報(bào), 2023, 02: 214-221t DENG Chun, GONG Yani, SUN Xiaogang, ZHANG Zhuang, KONG Fanxin. Modeling and energy efficiency analysis of membrane-based desalination treatment process for shale gas fracturing flowback wastewater. Petroleum Science Bulletin, 2023, 02: 214-221.

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