Development of Efficient Conversion Processes for Victorian Brown Coal

目前的联合研究是在1988年开始的，目的是发展维多利亚褐煤的高效转化过程，在那一年，五名研究人员被派往澳大利亚各机构进行实验工作。这些结果在1989年和1990年在日本的相关大学得到进一步发展。此外，本项目还向澳大利亚派遣了两名研究人员。1989年，六名澳大利亚科学家被邀请到日本进行磋商，1990年，四名日本科学家访问了澳大利亚。在每一次活动中，都对项目进行了讨论，交换了对煤炭研究的看法。得到了以下有价值的结果。(1)研究了液化油的升级，发现高比表面积陶瓷适合作为CoMo催化剂的载体。(2)用模型物质对煤的液化进行分析，表明长链烷烃和烯烃的来源为芳香酯。(3)发现闪速热解催化剂促进了煤表面含氧官能团的分解和气相二次反应。(4)研究了加热过程中褐煤表面状态的变化，并阐明了这些变化对炭催化气化的影响。(5)研究了以褐煤为原料制备脱除SOx和NOx的高性能活性炭的新工艺。(6)利用质子磁共振热分析观察煤在加热过程中的结构变化，发现新的流动相。阐明了褐煤与添加物的反应过程。(7)利用高效液相色谱法对褐煤在碱性介质中氧氧化后的产物进行了有效分离。该计划为新的转换过程提供了前景，并极大地促进了双方之间的相互了解。

The present joint research which aims at the development of highly efficient conversion processes for Victorian Brown coal has started in 1988 and, in that year, five researchers were sent to Australian institutions to do experimental works. The results obtained were further developed at the related Universities in Japan in 1989 and 1990. In addition, two researchers were sent to Australia by the present program. For consultation, six Australian scientists were invited to Japan in 1989 and four Japanese members visited Australia in 1990. In each time, the program was discussed and views on coal research were exchanged. Valuable results were obtained as follows.(1) The upgrading of liquefied oils was studied and high surface area ceramics were shown to be appropriate for the support of CoMo catalyst.(2) An analysis of liquefaction of coals using model substances indicated that origin of long-chain alkanes and alkenes was aromatic esters.(3) Catalysts in flash pyrolysis were found to promote the decomposition of oxygen-containing functional groups on coal surfaces as well as secondary reactions in gas phase.(4) Changes in surface state of brown coal during heating were investigated and the role of these on the catalytic gasification of char was elucidated.(5) A new process for producing a high performance active carbons from brown coal for removing SOx and NOx was developed.(6) Proton Magnetic Resonance Thermal Analysis was used to see the changes in coal structure during heating and new mobile phases were detected. Also the reaction processes between brown coal and added materials were clarified.(7) Products from oxidation of brown coal in alkaline medium with oxygen was separated effectively using high performance liquid chromatography.The program gave prospect of new conversion processes and greatly contributed to the mutual understanding between the two parties.