|
EPrints@IIT Delhi >
Faculty Research Publicatons >
Chemical Engineering >
Please use this identifier to cite or link to this item:
http://hdl.handle.net/2074/2368
|
| Title: | Energy and chemicals from rice husk |
| Authors: | Jain, Ankur
Rao, T Rajeswara
Sambi, S S
Grover, P D |
| Keywords: | rice husk
pyrolysis
amorphous silica
activated carbon
potassium silicate |
| Issue Date: | 1995 |
| Citation: | Biomass and Bioenergy, 7(1-6), 285-289p. |
| Abstract: | Rice husk is the only agro residue having maximum siliceous ash content and available in dry form. The present work on rice husk describes processes for producing controlled carbon-silica mixtures in amorphous form, electronic-grade potassium silicate and activated carbon.
Rice husk is first pyrolised in a reactor at less than 973 K to obtain the char which is subsequently heated and activated with steam at 1073–1173 K for about 1 h in another reactor. The char is leached with HCl. Analysis of the leached char indicates that it is amorphous in nature and contains mainly 40% carbon and 56% silica with small quantities of volatile matter. The utility of the material as filler for reinforcement of rubbers is tested. Test results show that a tenfold increase in tensile strength and modulus of elasticity can be achieved with 100 phr.
In another development, the leached char is digested with 10–15% KOH solution in the temperature range of 303–373 K for about 1–10 h. It is found that electr... |
| URI: | http://eprint.iitd.ac.in/dspace/handle/2074/2368 |
| Appears in Collections: | Chemical Engineering
|
Files in This Item:
| File |
Description |
Size | Format |
|---|
| jainene94.pdf | | 134Kb | Adobe PDF | View/Open |
|
Show full item record
All items in DSpace are protected by copyright, with all rights reserved.
|
