A study on the carbonisation of granular and briquetted biomass | |
| Author | Balasubramanian, Balakumar |
| Call Number | AIT RSPR no. ET-88-2 |
| Subject(s) | Carbonization Biomass energy |
| Note | A research study ( 9 credits) submitted in partial fulfillment of the requirement for the degree of Master of Engineering, School of Environment, Resources and Development |
| Publisher | Asian Institute of Technology |
| Abstract | Study on carbonisation of fine biomass in cyclone reactor and screw cum spouted bed carboniser was carried out. Experiments with cyclone reactor showed the percentage yield of char and percentage of fixed carbon to be a function of input oxygen/ carbon ratio. If high yield of about 27% is t he requirement, the cyclone has to be operated with an input oxygen/carbon ratio of 0.08 at an air flow rate of 20 Nm3 / hour. If high fixed car bon content of about 7 5 % is the requirement such as in residential cooking or in industry the reactor has to be operated with an input oxygen/carbon ratio of 0 . 20 at an air flow rate of 30 Nm 3 /hour. The yield for a given percentage fixed carbon was found to be higher for screw cum spouted bed carboniser than for cyclone reactor. The yield of charcoal obtained from screw cum spouted carboniser was 25. 48 % with a fixed carbon percentage of 35.64. Study on carbonisation of briquettes was also carried out. The results of t he effect of carbonisation temperature on cold briquettes indicated that the percentage of fixed carbon increased with the increase in carbonisation temperature but percentage yield of charcoal decreased. Low temperature carbonisation results on rice husk briquettes obtained torrefied briquettes, an intermediate product between densified briquette and briquetted charcoal. The torrefied briquette burnt with less smoke and was a l so easy to ignite and burned faster . |
| Year | 1988 |
| Type | Research Study Project Report (RSPR) |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Energy Technology (ET) |
| Chairperson(s) | Bhattacharya, Sribas C. |
| Examination Committee(s) | Exell, Robert H.B. ;Shrestha, Ram M. |
| Scholarship Donor(s) | Government of Australia / UNESCO |
| Degree | Research Studies Project Report (M. Eng.) - Asian Institute of Technology, 1988 |