成果報告書詳細
管理番号20130000000900
タイトル*平成24年度中間年報 ゼロエミッション石炭火力技術開発プロジェクト ゼロエミッション石炭火力基盤技術開発 石炭利用プロセスにおける微量成分の環境への影響低減手法の開発 「微量成分の高精度分析手法の標準化に資するデータ蓄積と燃焼プロセスにおけるプラント内挙動の解明」
公開日2013/10/18
報告書年度2012 - 2012
委託先名一般財団法人石炭エネルギーセンター 一般財団法人電力中央研究所 出光興産株式会社
プロジェクト番号P07021
部署名環境部
和文要約石炭燃焼プロセスにおける微量成分除去技術の開発には、高精度の測定技術が必要である。石炭中の分析方法については国際規格ISO、国内規格JISとも存在せず、ガス状ホウ素及びガス状セレンの測定精度の高い公定法は存在しない。本技術開発では、分析技術の国際的な標準化を目的に、石炭中微量成分の分析法については、コールバンクを拡充し、同バンクの石炭を利用し規格化に資するデータを蓄積する。また、排ガス中のガス状ホウ素及びガス状セレンの分析方法については、高精度な方法を確立するとともに、確立した測定方法を基に、実機あるいはベンチスケールにおいて、排ガス中のホウ素及びセレンの測定を行い、挙動解明を目指す。
英文要約2. Abstract
2.1 Extension of the Coal Bank Database
This year three new kinds of coal were received; standard samples were prepared, and analysis data was acquired. As at the end of the year, a database was constructed for 115 different types of coal, and data is being distributed according to the needs of associated test and research organizations.
2.2 Data collection contributing to standardization of analysis methods for trace elements in coal
This year, boron measurement methods were studied and measurement accuracy of trace metals was confirmed with the aim of formulating JIS standards. Studies on the boron measurement methods enabled measurable analysis conditions to be defined, and furthermore, enabled confirmation of the accuracy of measurement of trace metals using standard substances. Based on these results, round robin tests for measurement of 15 elements were performed by three kinds of organizations. And fundamental studies on elution mechanism of trace elements from coal were conducted.
3. Development of high precision analytical methods for trace elements in gaseous form, standardization, measurement by real equipment, and behavioral studies
3.1 Tests and proposals for standardization of analytical methods for gaseous boron and gaseous selenium
Discussions on amendments and studies on the wording of JIS K 0083:2006 and revised WD of ISO were conducted at the committee meeting. Discussions on WD were held and voting took place at the ISO meeting on 17 October.
3.2 Evaluation, acquisition of behavioral data and behavioral studies on the applicability of analytical methods for gaseous boron and selenium to working equipment such as in power stations
3.2.1 Evaluation of applicability to actual coal combustion plant
During this year, measurements of boron and selenium in flue gas were conducted twice in an actual power station. The result showed that the error at the parallel sampling point was small and could be reproduced, suggesting that the developed analytical methods could be applied to actual situations.
3.2.2 Behavioral studies on boron and selenium by coal-fired test furnace
Tests to understand the behavior of boron and selenium were conducted using coal-fired test furnace and simulated combustion flue gas generation system. The results suggested that gaseous boron mainly is absorbed in magnesium and calcium in coal ash at high temperatures above 350oC and gaseous selenium is absorbed in UBC in coal ash at low temperatures below 300 oC.
3.3 Response to the mercury partnership of the United Nations Environmental Programme
We participated in the coal partnership programme of the UNEP and MEC9 held in Russia in May 2012, and studied the international trends related to trace materials. We also participated in EUEC 2013 held in the USA in January 2013, and studied the trend of discharge regulations for hazardous air pollutants including mercury in coal-fired thermal plants in the USA.
ダウンロード成果報告書データベース(ユーザ登録必須)から、ダウンロードしてください。

▲トップに戻る