نتایج جستجو برای: co2 absorption

تعداد نتایج: 200568  

Journal: :journal of membrane science and research 0
nayef ghasem department of chemical & petroleum engineering, uae university, al-ain city, united arab emirates mohamed al-marzouqi department of chemical & petroleum engineering, uae university, al-ain city, united arab emirates

comin the present study, co2 removal from natural gas stream has been studied using a flat sheet membrane contactor. a three dimensional mathematical model is developed to describe the process. the model considers the transport of a gas mixture containing carbon dioxide and methane through a flat sheet membrane contactor module. the model is based on the non-wetted mode of operation, in which t...

Journal: :iranian journal of oil & gas science and technology 2014
ehsan rahmandoost behrooz roozbehani mohammad hosein maddahi

co2 emissions from combustion flue gases have turned into a major factor in global warming. post-combustion carbon capture (pcc) from industrial utility flue gases by reactive absorption can substantially reduce the emissions of the greenhouse gas co2. to test a new solvent (ait600) for this purpose, a small pilot plant was used. this paper presents the results of studies on chemical methods of...

Journal: :gas processing 0
ali mohebbi department of chemical engineering, faculty of engineering, shahid bahonar university of kerman, kerman, iran mahboobeh taheri department of chemical engineering, faculty of engineering, shahid bahonar university of kerman, kerman, iran hassan hashemipour department of chemical engineering, faculty of engineering, shahid bahonar university of kerman, kerman, iran ali morad rashidi research institute of petroleum industry (ripi), tehran, iran

in this study, it was shown that how co2 and h2s were removed from a natural gas stream, using a nanofluid containing nanoporous graphene in diehanolamine (dea). before running the experiments, the appropriate values were chosen for the nanosheet dosage and the liquid and gas flow rates in the absorption experiments, which were performed in a laboratory scale wetted wall column. in the experime...

Journal: Gas Processing 2016

    In this study, it was shown that how CO2 and H2S were removed from a natural gas stream, using a nanofluid containing nanoporous graphene in Diehanolamine (DEA). Before running the experiments, the appropriate values were chosen for the nanosheet dosage and the liquid and gas flow rates in the absorption experiments, which were performed in a laboratory scale wetted wall column. In the expe...

Journal: :international journal of energy and environmental engineering 2010
s aber m zarei a niaei h joshani koshky

carbon dioxide is a major greenhouse gas that contributes to the global warming by more than %60. absorption has been widely used to treat high concentrations of co2 in synthesis gas production, hydrogen manufacturing, and natural gas processing. the most well established method to capture co2 is its removal by absorption into amine solutions in the presence of activators. in this research, co2...

2017
Rachel Steinhardt Stanley C. Hiew Hemakesh Mohapatra Du Nguyen Zachary Oh Richard Truong Aaron Esser-Kahn

Designing new liquids for CO2 absorption is a challenge in CO2 removal. Here, achieving low regeneration energies while keeping high selectivity and large capacity are current challenges. Recent cooperative metal-organic frameworks have shown the potential to address many of these challenges. However, many absorbent systems and designs rely on liquid capture agents. We present herein a liquid a...

Journal: :Optics letters 2011
Toshihiro Somekawa Naohiro Manago Hiroaki Kuze Masayuki Fujita

We built a differential optical absorption spectroscopy system to measure near-surface CO2 absorption in the atmosphere using a nanosecond white light continuum. The white light laser can cover wavelengths ranging from 420 to 2400 nm, where the CO2 and H2O absorption lines are located. At an optical path length of 568 m, it was possible to evaluate atmospheric CO2 concentration from absorption ...

Journal: :محیط شناسی 0
نغمه مبرقعی استادیار پژوهشکدة علوم محیطی دانشگاه شهید بهشتی غلامعلی شرزه ای دانشیار گروه اقتصاد اجتماعی دانشکدة اقتصاد دانشگاه تهران مجید مخدوم استاد دانشکدة منابع طبیعی دانشگاه تهران احمدرضا یاوری داتشیار گروه برنامه ریزی و مدیریت، دانشکده محیط زیست، دانشگاه تهران حمیدرضا جعفری داتشیار گروه برنامه ریزی و مدیریت، دانشکده محیط زیست، دانشگاه تهران

forests as one of the most important terrestrial ecosystems provide many ecosystem services that almost there is no market to present their values. among this non market services, gas regulation has a significant importance. plants absorb co2 and use it in photosynthesis process. this process, in addition to producing plant biomass and releasing o2, has the effective role in reducing the greenh...

2016
Taehyoung Kim Vivian W. Y. Tam

To comply with recent international trends and initiatives, and in order to help achieve sustainable development, Korea has established a greenhouse gas (GHG) emission reduction target of 37% (851 million tons) of the business as usual (BAU) rate by 2030. Regarding environmentally-oriented standards such as the IGCC (International Green Construction Code), there are also rising demands for the ...

2014
Fei Wang Toshihiro Kuzuya Shinji Hirai Jihua Li Te Li

The decomposition of dolomite into CaO and MgO was performed at 1073 K in vacuum and at 1273 K in an Ar atmosphere. The dolomite calcined in vacuum was found to have a higher specific surface area and a higher micropore volume when compared to the dolomite calcined in the Ar atmosphere. These pyrolysis products of dolomite were reacted with CO2 at 673 K for 21.6 ks. On the absorption of CO2, th...

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