إمكانية استخدام مستخلص بذور الشعير كمثبط للتآكل الحمضي للفولاذ الكربوني
محتوى المقالة الرئيسي
الملخص
تمت دراسة تأثير مستخلصات بذور الشعير على تآكل الفولاذ الكربوني في 1M حمض كلور الماء للتحقق من إمكانية استخدام كمثبط أخضر في عملية التنظيف وإزالة الترسبات الحمضية للمبادلات الحرارية، عند درجات حرارة مختلفة. أُجريت عمليات الاستخلاص باستخدام الايثانول والماء %50 حجماً، وبطريقتي النقع والأمواج فوق الصوتية. تمت دراسة آلية تأثير المثبط الذي أعطى أفضل كفاءة تثبيط، من خلال دراسة الامتزاز والتآكل بالطرق الكهروكيميائية (مخططات تافل، ومطيافية المقاومة الكهروكيميائية) والحسابات الترمودينامكية. أظهرت نتائج الدراسة عدم وجود تأثير لطريقة الاستخراج على سلوك التثبيط ، حيث أظهر التثبيط كدالة للتركيز زيادة معنوية في كفاءة التثبيط حتى التركيز 400 جزء في المليون ، ثم ظهرت مستقلة عنها في كلتا الطريقتين. ، ومع ذلك كانت درجة الحماية أعلى لمستخلص طريقة النقع عند التركيز 800ppm 87.01%) مقارنة بـ 80.56% لمستخلص الأمواج فوق الصوتية). أشارت دراسة آلية التثبيط لهذا المستخلص إلى إمكانية الامتزاز الكيميائي للمستخلص وإعادة لترتيب الشحنات في الطبقة المزدوجة الكهربائية . أبدت فعالية التثبيط ارتفاعاً مع درجة الحرارة.
Received 01/02/2023
Revised 23/04/2023
Accepted 25/04/2023
Published Online First 20/09/2023
تفاصيل المقالة
هذا العمل مرخص بموجب Creative Commons Attribution 4.0 International License.
كيفية الاقتباس
المراجع
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