Abstract
The paper deals with the development of a process development unit (PDU) for the fluid bed pyrolysis of non-caking slack coal obtained from Singareni and Talcher coalfields. Preheated air is used as the fluidizing medium. It is necessary to avoid its maldistribution by a suitable design of the gas distributor. In this regard perforated conical distributors appear to play an important role. In the low temperature carbonization of coal an operation around 500 C gives optimum yields of char and tar of desirable quality. Carbonization reactions are generally completed within about 20 min of the feed entry into the fluidized bed and the char attains an equilibrium volatile matter content. Since air is used as the fluidizing medium carbonization gas is diluted with nitrogen and non-combustibles. The heating value of the gas is low. (5 refs.)
Citation Formats
Ramakrishnan, N N, Akmal, M A.K., and Vaidyeswaran, R.
Coal pyrolysis in a continuous fluidized bed - process development studies.
India: N. p.,
1981.
Web.
Ramakrishnan, N N, Akmal, M A.K., & Vaidyeswaran, R.
Coal pyrolysis in a continuous fluidized bed - process development studies.
India.
Ramakrishnan, N N, Akmal, M A.K., and Vaidyeswaran, R.
1981.
"Coal pyrolysis in a continuous fluidized bed - process development studies."
India.
@misc{etde_5178974,
title = {Coal pyrolysis in a continuous fluidized bed - process development studies}
author = {Ramakrishnan, N N, Akmal, M A.K., and Vaidyeswaran, R}
abstractNote = {The paper deals with the development of a process development unit (PDU) for the fluid bed pyrolysis of non-caking slack coal obtained from Singareni and Talcher coalfields. Preheated air is used as the fluidizing medium. It is necessary to avoid its maldistribution by a suitable design of the gas distributor. In this regard perforated conical distributors appear to play an important role. In the low temperature carbonization of coal an operation around 500 C gives optimum yields of char and tar of desirable quality. Carbonization reactions are generally completed within about 20 min of the feed entry into the fluidized bed and the char attains an equilibrium volatile matter content. Since air is used as the fluidizing medium carbonization gas is diluted with nitrogen and non-combustibles. The heating value of the gas is low. (5 refs.)}
journal = []
volume = {62:CH1}
journal type = {AC}
place = {India}
year = {1981}
month = {Oct}
}
title = {Coal pyrolysis in a continuous fluidized bed - process development studies}
author = {Ramakrishnan, N N, Akmal, M A.K., and Vaidyeswaran, R}
abstractNote = {The paper deals with the development of a process development unit (PDU) for the fluid bed pyrolysis of non-caking slack coal obtained from Singareni and Talcher coalfields. Preheated air is used as the fluidizing medium. It is necessary to avoid its maldistribution by a suitable design of the gas distributor. In this regard perforated conical distributors appear to play an important role. In the low temperature carbonization of coal an operation around 500 C gives optimum yields of char and tar of desirable quality. Carbonization reactions are generally completed within about 20 min of the feed entry into the fluidized bed and the char attains an equilibrium volatile matter content. Since air is used as the fluidizing medium carbonization gas is diluted with nitrogen and non-combustibles. The heating value of the gas is low. (5 refs.)}
journal = []
volume = {62:CH1}
journal type = {AC}
place = {India}
year = {1981}
month = {Oct}
}