公开(公告)号：US20150090938A1

公开(公告)日：2015-04-02

申请号：US14348899

申请日：2012-12-06

Applicant: TECHNISCHE UNIVERSITÄT BERGAKADEMIE FREIBERG

Inventor： Bernd Meyer ,  Martin Gräbner ,  Robert Pardemann

IPC: C10J3/78 ,  C01B3/02 ,  C10J3/46 ,  C10J3/48 ,  C10J3/76 ,  C10J3/72

CPC classification number: C10J3/78 ,  C01B3/02 ,  C10J3/466 ,  C10J3/485 ,  C10J3/506 ,  C10J3/721 ,  C10J3/74 ,  C10J3/76 ,  C10J2200/152 ,  C10J2300/0959 ,  Y02E20/16 ,  Y02E20/18

Abstract: The invention relates to a process and apparatus for entrained flow gasification of solid fuels under pressure, characterized in that first and second gasification agents containing oxygen are supplied in at least two stages to a powdery gasification stream input from above without burners so that a first, upper gasification chamber and, connected to it, a second, lower gasification chamber are formed. There is partial gasification of the gasification materials because of the addition of the first gasification agents, which are apportioned in terms of quantity and composition; temperatures arise in the first, upper gasification chamber that are greater than 600° C. Furthermore, the carbon conversion of the first gasification products is limited to a maximum of 80% with reference to the carbon input of the gasification materials. Because of the addition of the second gasification agents that are apportioned in terms of quantity and composition, temperatures arise in the second gasification chamber that are so high that complete gasification takes place for the most part and the desired composition of the raw synthesis gases of the second gasification products is achieved. In the process, the ashes are discharged in a dry form and/or in the form of melted slag.

Abstract translation: 本发明涉及固体燃料在压力下夹带流化气化的方法和装置，其特征在于，含有氧气的第一和第二气化剂至少分两个阶段供应到从上面输入的不含燃烧器的粉状气化流， 形成上部气化室，与其连接，形成第二下部气化室。 由于添加了第一气化剂，其数量和组成分配，气化材料部分气化， 在第一上部气化室中产生大于600℃的温度。此外，参考气化材料的碳输入，第一气化产物的碳转化率被限制为最大80％。 由于添加了在数量和组成方面分配的第二气化剂，所以在第二气化室中产生如此高的温度，使得完全气化发生在大部分和原始合成气的所需组成 实现了第二次气化产品。 在此过程中，灰分以干燥形式和/或以熔渣形式排出。