Formed Coking Through The Copreheattreatment With Additive

添加剂共预热形成焦化

基本信息

批准号：
59850141
负责人：
MOCHIDA Isao
金额：
$ 5.12万
依托单位：
Research Institute of Industrial Science, Kyushu University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Developmental Scientific Research
财政年份：
1984
资助国家：
日本
起止时间：
1984 至 1986
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-59850141/
关键词：
Anisotropy Formed Coking Blustfurnace Coke Copreheattreatment Coal 石炭熱間強度

项目摘要

The co-preheattreatment of non-fusible and slightly fusible coals with A240 and hydrogenated A240 under high temperature-short contact-time conditions around 500 ゜C has been examined in an attempt to produce a formed coke with better anisotropic development. These conditions shortened the copreheat-treatment time and provided better anisotropic development in the resultant coke after carbonization. Effectiveness of short contact-time has been examined interms of the extent of depolymerization of coal molecules suitable for anisotropic development, this being related to coal liquefaction under similar conditions.The carbonization properties of weathered bituminous coals were compared with those of the non-weathered coals. The weathering decreased the fusibility of the coal to leave more basic anisotropy and to diminish the size of the majority of the anisotropy in the resulting coke. On the other hand, more domain and flow domain textures developed. Co-carbonization with a petroleum pitch additive was found effective enhancing the fusibility of the coal and anisotropic development in the coke. Formed coking of the weathered coal by means of copreheat-treatment with the additive, provided an anisotropic, dense and strong coke of uniform size. For the weathered coal, the optimum copreheat-treat-ment was shorter than that using the non-weathered coal, indicating high coking reactivity of the weathered coal. The transferable hydrogens from the additive are rapidly consumed by the oxygen containing groups of the weathered coal.

已经检查了与A240和A240氢化和氢化A240在高温偏压接触时间条件下的共汇处理，以约500 c c的状态，以试图产生具有更好各向异性发育的形成的可乐。这些条件缩短了相互处理的时间，并在碳酸化后产生的可口可乐提供了更好的各向异性发展。已经研究了适用于各向异性发育的煤分子解聚的程度的短接触时间的有效性，在相似的条件下，这与煤液化有关。将风化沥青煤的碳化特性与非透明煤的碳化特性进行了比较。风化降低了煤的融合性，留下更碱性的各向异性，并减少所得可口可乐中大多数各向异性的大小。另一方面，开发了更多的域和流域纹理。发现与石油俯仰上瘾的共碳化有效增强了可乐中煤和各向异性发育的融合性。通过添加的共同处理形成了风化的煤炭，提供了各向异性，密集且浓稠的焦炭，其大小均匀。对于风化的煤炭，最佳的共进治疗比使用非天气的煤炭短，表明风化煤炭的反应性很高。从添加的氢中转移的氢被含氧含氧组迅速消耗。