High Temperature Odor-Free Recovery BoilerCosts & Benefits
|Parent Process: Chemical Recovery|
|Energy Savings Potential||
With the new equipment, the boiler efficiency increases by 20%. For a boiler capacity of 150 t/hr and annual operating time of 24 h/day and 330 d/y, effective steam generation rate increases by 30 t/hr (NEDO, 2008. p. 164).
In an Indian plant, with the installation of a high efficiency boiler, black liquor concentration was increased from 65% to 75% and resulting steam generation has increased from 2.6 t-steam/t-black liquor to 3.4 t-steam/t-black liquor (CII, 2008. p. 97).
|CO2 Emission Reduction Potential|
Equipment cost is estimated as ¥1,000 million. Construction costs are approximately ¥300 million. With an oil price of ¥1.81/4.14 MJ, the system has a pay-back time o f3.7 years (NEDO, 2008. p. 164).
The installation cost of the high-efficiency bolier in the Indian plant (with 1100 tpd solids firing capacity) is estimated at Rs. 70 crores. The boiler is expected to generate Rs. 27 crores of additional revenue due to increased electricity production (CII, 2008. p. 97).
High Temperature Odor-Free Recovery BoilerSchematic
High Temperature Odor-Free Recovery Boiler Publications
This revised 2008 version of the publication from New Energy and Industrial Technology Development of Japan includes information on innovative Japanese technologies for energy efficiency and for the reduction of CO2 emissions.
Prepared by the Indian Confederation of Industry, this manual provides information on the best practices applicable to Indian Pulp and Paper Industry.