04/02036 Trace elements in circulating fluidized bed combustion of coal: Zhang, J. et al. Ranshao Kexue Yu Jishu, 2003, 9, (1), 64–67. (In Chinese)

• Book ID: 104279827
• Publisher: Elsevier Science
• Year: 2004
• Weight: 173 KB
• Volume: 45
• Category: Article
• ISSN: 0140-6701
• DOI: 10.1016/s0140-6701(04)94623-1

✦ Synopsis

Process heating, power and incineration (energy applications in industry)

A pneumatically conveyed flow of solids is continuously introduced into a pressure vessel in which a fluidized bed is maintained by adding a fluidization gas. The fluidized bed is heated by heat exchange with a heat-transfer medium. The solid-gas mixture is continuously withdrawn from the fluidized bed and divided into a lean gas phase and a highly compressed solid-gas mixture by gravitational or centrifugal separation. The highly compressed solid-gas mixture is then continuously discharged into a pneumatic transport line and conveyed pneumatically. The solid content of the pressure vessel is continuously monitored. The continuous discharge of the highly compressed solid/ gas mixture into the pneumatic transport line is controlled via a controlled gas withdrawal from the lean gas phase in such a manner that the solid content of the pressure vessel remains substantially constant.