I'm conducting a research about biomass pyrolysis and for the reactor I'm leaning towards using fluidized bed since I have read papers saying that Fluidized bed is a good type of reactor for pyrolysis. But I have not found any research paper explaining in detail the fluidized bed reactor. So I Have a lot of questions like how do you heat it? do you use burners in fluidized bed? if so where do you put it? what type of gas should I use? is steam a viable option? what are the parts of the reactor? can you explain every part and what they do? and is it easy to prototype?. If you have videos relating to the topic that will make understanding it easier please attach them.
Most of the pyrolysis reactor technologies consist of three main sections:
1. Feeding system, where the raw material is typically heated and melted with the liquid outflow being fed into the reactor
2. PVC cracking at 350°C is required for feedstocks containing PVC .
3. Pyrolysis reactor operating at temperatures between 350 and 650°C and
4. Products collector where liquid and solid products are separated and recovered
In a vortex pyrolysis reactor, the biomass particles are entrained in a hot inert gas (steam or nitrogen) flow and then tangentially enter into the reactor tube. Inside the reactor, the biomass particles are then forced to slide on the reactor wall at high velocity using high centrifugal forces.There are two important requirements for heat transfer in pyrolysis reactors, i.e., heat transfer to the medium, and from the medium to the biomass. A high heat transfer rate is necessary to heat the particles sufficiently rapidly to the desired temperature level. Two main ways of heating biomass particles in the FP systems are gas-solid and solid-solid, and the choice depends on the reactor type . Typical heating rates are in the range of 1-1000 °C/s, but high local heating rates of up to ca. 10,000 °C/s have been claimed
Please find attached herewith file
https://www.googleadservices.com/pagead/aclk?sa=L&ai=DChcSEwiH2qPen4b3AhWLOCsKHVMiDW4YABABGgJzZg&ae=2&ohost=www.google.com&cid=CAESbeD2JYeRte0ati2sf_4JdPnwYJymcY7O-YRnOZiEQoglO3WWDLVq1zfK5QcpLer_prsAzK0s5p4pfy25qNf9CsOjZzuJiw7X7GnKkmner2-qLrGNVeCd0faBkC8dLcKSF3LX8RNWiWAjBlz52Wk&sig=AOD64_2UVnRAwE4vdV5j3K5XxMc0_fI2Dg&q&adurl&ved=2ahUKEwjWo5ven4b3AhXjILcAHSrXA2AQ0Qx6BAgCEAE
Fluidised Bed pyrolysis is the pyrolysis process using the fluidised bed technology having various advantages, like better heat transfer coefficient, lower bed temperature of 750-850 C , more efficient pollution control. The Fluidised Bed system comprises a distributor plate through which compressed air passes to fluidise the particles to be pyrolysed or burnt. Since post world war II energy famine, the fluidised bed combustion was invented as the solution of energy crisis. The FBC technology is applied for making the Atmospheric Fluidised Boiler and Pressurised Fluidised Bed Boiler.
- Badges
- Science topic
- Similar topics
- Geoscience
- Asia
- India