Development of Draft Tube Spouted Bed Coal Gasifier with Circulating Ceramic Particles as Thermal Medium for Hydrogen-rich Gases Production

循环陶瓷颗粒热工富氢气体引流管喷动床煤气化炉的研制

• 批准号: 07555241
• 负责人: HATAKE Yasuo
• 金额: $ 13.12万
• 依托单位: KAGOSHIMA UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1997
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07555241/
• 关键词: Coal Gasification; Scale-up; Ceramic Particles; Hydrogen Production; Thermal medium; Converging Nozzle; 炭酸ガス化; 蓄熱性媒体; 石炭変換技術

A spouted bed draft tube type reactor with circulating ceramic particles was proposed for the coal gasifier with which 50% or more hydrogen content gases were efficiently produced at comparatively low temperatures and under atmospheric pressure. At first, 1 kg-coal/h feed for the coal gasification process was successfully demonstrated using a reactor constructed in 1994. This time, to carry out a scale-up experiment from 1 kg-coal/h to 2 kg-coal/h and to achieve the significant improvements of reactor performance by equipping with measurement devices, a new type reactor was designed and constructed.Experimental operations of the reactor informed us the conclusive functional disorder of L-valve, which was expected to stop the bypassing gas flow from the nozzle part to the annulus part. This time, cold model experiments were carried out using the new reactor with ceramic particles as circulating medium. The effects of operating factors such as bypassing flow and tube clearance on the circulating velocity of ceramic particles were investigated to obtain the fundamental information on the bypassing flow. In the cold model experiments, the converging nozzle was introduced to significantly increase the circulating rate.

提出了一种具有循环陶瓷颗粒的喷流床导流管式反应器，该反应器可在较低的温度和常压下有效地生产含氢量在50%以上的煤气。首先，使用1994年建造的反应器成功地演示了1千克煤/小时的煤气化过程。本次为进行从1 kg煤/h到2 kg煤/h的放大实验，并通过配备测量装置使反应器性能得到显著改善，设计并建造了新型反应器。反应器的实验操作告诉我们，l阀的功能紊乱是决定性的，预计它会阻止从喷嘴部分到环空部分的旁路气体流动。本次采用新型反应器，以陶瓷颗粒为循环介质，进行了冷模实验。研究了旁路流量和管道间隙等操作因素对陶瓷颗粒循环速度的影响，获得了旁路流量的基本信息。在冷模实验中，引入了会聚喷嘴，显著提高了循环速率。

项目成果

Y.Hatate, H.Mihara, K.Ijichi, T.Yoshimi, S.Arimizu, Y.Uemura and D.F.King: ""Catalytic Coal Gasification Using a Draft Tube spouted Bed Gasifier"" KAGAKU KOGAKU RONBUNSHU. 22(5). 1180-1184 (1996)

Y.Hatate、H.Mihara、K.Ijichi、T.Yoshimi、S.Arimizu、Y.Uemura 和 D.F.King：“使用引流管喷动床气化炉的催化煤气化”KAGAKU KOGAKU RONBUNSHU。

三原 久正: "ドラフトチューブ付噴流層による石炭接触ガス化装置の開発" 鹿児島大学工学部研究報告. 32. 71-75 (1995)

三原久政：“使用带尾流管的喷动床的煤催化气化设备的开发”鹿儿岛大学工学部研究报告32. 71-75 (1995)。

伊地知 和也: "低温・常圧での石炭ガス化技術" 燃料及燃焼. 62. 653-659 (1995)

Kazuya Ijichi：“低温常压煤气化技术”《燃料与燃烧》62. 653-659 (1995)。

伊地知 和也: "低温・常圧での炭酸ガス化技術" 燃料及燃焼. 62. 653-659 (1995)

Kazuya Ijichi：“低温常压碳化技术”《燃料与燃烧》62. 653-659 (1995)。