Development of Clean Coal Technology for Mitigating Global Warming

本项目的目的是为(A)新的煤炭预处理方法、(B)原位脱氮/脱硫方法和C强化烟气处理方法的开发提供基础研究。开发的技术是为了在不久的将来利用低阶煤发电。指导委员会通过内部评估和评价对该项目进行了修订和/或修改。取得的主要成果是：(A)开发了利用溶剂、不同形式的CaO颗粒的新的煤炭预处理方法；(B)提出了新的沸腾床煤燃烧概念，开发了利用大孔CaO的脱氮/脱硫方法，以及利用活性碳纤维在室温下进行脱氮/脱硫的方法，以及开发了几种新型的脱氮/脱硫剂。此外，还提出了几种测定和去除汞、砷等痕量元素的方法。这些成果将在不久的将来用于煤炭利用技术。奋进公司还公布了该项目的成果。最后报告是用英文编写的，审查会议上的所有发言也都是用英文做的。来自国外的四位研究人员在评审会上作了全体演讲，并就洁净煤技术的未来发展和国际合作进行了小组讨论。今年3月，首席研究员在美国化学学会第225次全国会议上组织了一场名为“洁净煤技术”的研讨会，宣传这一项目的成果。此外，目前正在出版国际著名期刊之一《燃料》的特刊，以公布专题讨论会的结果。这些活动将有助于该项目的成果在世界范围内得到利用。

The purposes of this project were to do fundamental researches for supporting the development of (A) new coal pretreatment methods, (B) in situ de-Nox/de-Sox methods, and c enhanced flue gas treatment methods. The developed technologies are for the utilization of low rank coals in power generation in the near future. The project was revised and/or modified through the internal assessment and evaluation by the steering committee. Main results obtained are (A) the developments of new coal pretreatment methods utilizing solvents, various forms of CaO particles, (B) the proposal of a new fluidized bed coal combustion concept and the development of de-Nox/de-Sox methods utilizing a macro porous CaO, and c de-Nox/de-Sox methods at room temperature utilizing an activated carbon fiber and the development of several new types of de-Nox/de-Sox sorbents. Furthermore, several methods were proposed for the measurement and removal of trace elements such as Hg and As. These outcomes will be surely utilized in the coal utilization technologies in the near future.Endeavor was also made to make public the outcome of this project. The final report was prepared in English, and all the presentations at the review meeting were also made in English. Four distinct researchers from abroad made plenary lectures at the review meeting and a panel discussion was made on the future development of clean coal technology and international cooperation. In March of this year a symposium called "Clean Coal Technology" was organized by the head investigator at 225^<th> national meeting of the American Chemistry to advertise the results of this project. Furthermore, the publication of a special issue of one of internationally prestigious journals, FUEL, is now in progress to make public the outcome of the symposium. These activities will help the outcome of this project to be utilized world wide.