Calcium phosphates synthesized from coralline materials (Porites) and their application as a demulsifier for water–oil separation

IF 2.3 4区工程技术 Q3 CHEMISTRY, MULTIDISCIPLINARY

Separation Science and Technology Pub Date : 2023-07-31 DOI:10.1080/01496395.2023.2240952

Abdou Elkoudy, M. Essa, E. Ahmed, M. Soliman

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引用次数: 0

Abstract

ABSTRACT Crude oil extraction is a hot topic concerning industrial applications. The extracted oil emulsions treatment with demulsifier is demanded for markets. Herein, we prepared a naturally based demulsifier comprising calcium phosphates from coralline materials. The XRD verifies successful formation of the intended calcium phosphate with characteristic peaks where the most intense peak at 30º for (211) plane matched well with card and former research. The SEM reveals the formation of the spherical, flowery shape. Zeta potential reaches −10 mV indicating reasonable stability of the demulsifier. For examining the separation efficiency using the bottle test, few drops of the demulsifer (~100 ppm) are enough for the separation at 55°C for 40 min in the water bath. Inherently, the separation initiates within few seconds. The extended results for the demulsifier are applied onto the ASH field (Borg Alarab, Egypt) and compared to other companies reports. The optimum separation efficiency for salt and water contents from crude oil reaches 9 PTB and 0.1%vol, respectively, after treatment by heating unit (Sigma package). The recommended values for these factors are 30 PTB and 2%vol. The efficiency of separation exceeds 99% for water and salt. This direction is significantly important for oil production and industry.

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以珊瑚为原料合成磷酸钙及其在水油分离破乳剂中的应用

原油开采是工业应用领域的一个热点问题。用破乳剂处理萃取油乳剂是市场需求。在此，我们制备了一种天然的破乳剂，该破乳剂由珊瑚材料组成，包括磷酸钙。x射线衍射(XRD)验证了目标磷酸钙的成功形成，其特征峰在(211)平面30º处最强，与卡和前人的研究结果吻合较好。扫描电镜显示了球形花状结构的形成。Zeta电位达到−10 mV，表明破乳剂具有较好的稳定性。用瓶法检测分离效率时，在55°C水浴中分离40分钟，只需几滴破乳剂(~100 ppm)即可。本质上，分离会在几秒钟内开始。该破乳剂的扩展结果应用于ASH油田(Borg Alarab, Egypt)，并与其他公司的报告进行了比较。经加热装置(Sigma包)处理后，原油中盐和水的最佳分离效率分别为9ptb和0.1%vol。这些因素的推荐值为30ptb和2%vol。对水、盐的分离效率超过99%。这一方向对石油生产和工业具有重要意义。

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来源期刊

Separation Science and Technology 工程技术-工程：化工

CiteScore

6.10

自引率

3.60%

发文量

131

审稿时长

5.7 months

期刊介绍： This international journal deals with fundamental and applied aspects of separation processes related to a number of fields. A wide range of topics are covered in the journal including adsorption, membranes, extraction, distillation, absorption, centrifugation, crystallization, precipitation, reactive separations, hybrid processes, continuous separations, carbon capture, flocculation and magnetic separations. The journal focuses on state of the art preparative separations and theoretical contributions to the field of separation science. Applications include environmental, energy, water, and biotechnology. The journal does not publish analytical separation papers unless they contain new fundamental contributions to the field of separation science.