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Conversion of carbon dioxide to valuable petrochemicals:An approach to clean development mechanism

Journal of Natural Gas Chemistry 2011年第3期20卷 219-231页

作者： Farnaz Tahriri Zangeneh Saeed Sahebdelfar Maryam Takht Ravanchi Catalyst Research Group Petrochemical Research and Technology Company (NPC-RT) National Petrochemical Company

The increase of atmospheric carbon dioxide and the global warming due to its greenhouse effect resulted in worldwide concerns. On the other hand, carbon dioxide might be considered as a valuable and renewable carbon source. One approach to reduce carbon dioxide emissions could be its capture and recycle via transformation into chemicals using the technologies in C1 chemistry. Despite its great interest, there are difficulties in CO2 separation on the one hand, and thermodynamic stability of carbon dioxide molecule rendering its chemical activity low on the other hand. Carbon dioxide has been already used in petrochemical industries for production of limited chemicals such as urea. The utilization of carbon dioxide does not necessarily involve development of new processes, and in certain processes such as methanol synthesis and methane steam reforming, addition of CO2 into the feed results in its utilization and increases carbon efficiency. In other cases, modifications in catalyst and/or processes, or even new catalysts and processes, are necessary. In either case, catalysis plays a crucial role in carbon dioxide conversion and effective catalysts are required for commercial realization of the related processes. Technologies for CO2 utilization are emerging after many years of research and development efforts.

关键词： carbon dioxide utilization C1 chemistry clean development mechanism catalysis greenhouse effects

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GCM STUDIES ON ANTHROPOGENIC CLIMATE CHANGE IN CHINA

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Acta meteorologica Sinica 2000年第2期14卷 247-256页

作者：赵宗慈罗勇高学杰 National Climate Center Beijing 100081

Impacts of human activities on climate change as simulated by the general circulation models (GCMs)in China for the recent ten years have been summarized and reviewed in this *** researches show that it might be getting warmer over China due to the greenhouse *** atmospheric circulation and precipitation also might be changed due to the greenhouse *** assessments and evaluations of the models over the globe and China have also been presented in this paper.

关键词： human activity greenhouse effects climate scenarios general circulation models(GCMs) East Asia and China

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