کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9684783 | 1456213 | 2005 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Pilot scale application of the Membrane Aromatic Recovery System (MARS) for recovery of phenol from resin production condensates
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Pilot scale application of the Membrane Aromatic Recovery System (MARS) for recovery of phenol from resin production condensates Pilot scale application of the Membrane Aromatic Recovery System (MARS) for recovery of phenol from resin production condensates](/preview/png/9684783.png)
چکیده انگلیسی
This paper describes the application of the Membrane Aromatic Recovery System (MARS) to the recovery of phenol from wastewater streams arising from a phenolic resins production plant. These wastewater streams typically contain between 2 and 8Â wt.% phenol, and their detoxification has a significant economical and environmental impact, since about 30% of the global phenol consumption is intended for phenolic resins synthesis (annual production of approximately 3 million metric tons resin). A MARS pilot plant unit operating in batch mode was installed at a United Kingdom resin manufacturing site, and average efficiencies of 94 and 84%, for the phenol extraction and the phenol recovery stages, respectively, were achieved. The final MARS product, an organic phase, composed of 77-80Â wt.% phenol and 20-23Â wt.% water, was recycled back to the original manufacturing process and successfully used as a reagent for resin production. The phenol content in the discharged wastewater stream was successfully reduced to 0.1-0.3Â wt.%, sufficiently low to allow further detoxification by a destructive process, such as biotreatment or chemical oxidation. The influence of different parameters, such as stripping solution pH and neutralizing HCl solution concentration on the process performance was evaluated. Scale up effects on the mass transfer at the extraction stage were also analysed on the basis of the liquid film theory and the resistances in series approach.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Membrane Science - Volume 257, Issues 1â2, 15 July 2005, Pages 120-133
Journal: Journal of Membrane Science - Volume 257, Issues 1â2, 15 July 2005, Pages 120-133
نویسندگان
Frederico Castelo Ferreira, Ludmila Peeva, Andrew Boam, Shengfu Zhang, Andrew Livingston,