Burning-out of a carbonaceous residue from a porous body

✍ Scribed by S. Strijbos

• Publisher: Elsevier Science
• Year: 1973
• Tongue: English
• Weight: 650 KB
• Volume: 28
• Category: Article
• ISSN: 0009-2509
• DOI: 10.1016/0009-2509(73)85101-2

✦ Synopsis

A study of the burning-out of a carbonaceous residue from a porous cylindrical body is presented. The amount of residue in the pores is very small. Only one end surface of the body is in direct contact with the surrounding gas atmosphere during the burning-out process. Experiments are performed in a stream of air at 480,s 10,540 and 660°C. The course of the process is determined by analysing the off-gases from the reactor in which the body is placed.

Two successive periods are defined in the process. The end of the fkst period is reached when the outside of the body which is in contact with the gas is just free of carbon. The second period is completed when all residue is burnt out. Equations based on some simplii assumptions are derived for the length of the 8rst period and of the total process. The experimental results are explained with the model proposed.