نتایج جستجو برای: membrane separation technology

تعداد نتایج: 961607  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علم و صنعت ایران - دانشکده مهندسی شیمی 1386

جداسازی موثر ایزومرهای زایلن خصوصاً پارازایلن بدلیل نقش ویژه ای که در تولید پلی استر pet دارد از مسائل مهم در صنعت پتروشیمی محسوب می شود. ایزومرهای زایلن در صنعت، به روش های تقطیر، جذب سطحی و کریستالیزاسیون از یکدیگر جدا می شوند. اما به علت پیچیدگی و مصرف زیاد انرژی توسط این روش ها، روش های جداسازی غشایی به عنوان جایگزین به طور گسترده مورد بررسی و تحقیق قرار گرفته اند. به خصوص روش تراوش تبخیری ی...

Journal: :Oman Journal of Ophthalmology 2013

Journal: :Processes 2021

The textile industry is an important contributor to the growth of global economy. However, a huge quantity wastewater generated as by-product during manufacturing, which hinders ongoing development in terms environmental sustainability. Membrane distillation (MD), driven by thermal-induced vapor pressure difference, being considered emerging economically viable technology treat for water reuse....

Journal: :Journal of Membrane Science 2021

The R410A refrigerant blend (GWP = 2088), a near azeotropic and equimass mixture of difluoromethane (R32, GWP 675) pentafluoroethane (R125, 3500), has been included in the HFC phase down road map established worldwide. In this context, recovery value-added R32 from using membrane technology would be breakthrough refrigeration air conditioning sector, given that conventional distillation cannot ...

Journal: :Kagaku To Seibutsu 1989

Journal: :Frontiers of Chemical Science and Engineering 2021

Journal: :Polymers & Polymer Composites 2021

The separation of air (O 2 /N ) via a polymeric membrane has recently piqued the interest academic researcher as well industrial sector. Because its remarkable characteristics, emerged one innovative and fast growing technology. However, two major problems faced by technology, which hinder growth in commercial sector are, 1): trade-off between permeability selectivity. 2): Maintaining physical ...

2016
Jianwei Yuan Qianqian Li Jie Shen Kang Huang Gongping Liu Jing Zhao Jingui Duan Wanqin Jin

It is still a great challenge to prepare high performance mixed matrix membranes (MMMs) because of the difficulty in finely tuning the compatibility between filler and organic phases. In this work, ZIF-8 nanoparticles hydrophobically functionalized by 5, 6-dimethylbenzimidazole (DMBIM) via shell ligand exchange (SLE) reaction were incorporated into polydimethylsiloxane (PDMS) matrix to fabricat...

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