Division BAT 31 In order to reduce thermal energy consumption (steam), maximise the benefit of energy carriers used, and to reduce the consumption of electricity, BAT is to apply a combination of the techniques given below.
United Kingdom
| Technique | |
|---|---|
| a | High dry solid content of bark, by use of efficient presses or drying |
| b | High efficiency steam boilers, e.g. low flue-gas temperatures |
| c | Effective secondary heating systems |
| d | Closing water systems, including bleach plant |
| e | High pulp concentration (middle or high consistency technique) |
| f | High efficiency evaporation plant |
| g | Recovery of heat from dissolving tanks e.g. by vent scrubbers |
| h | Recovery and use of the low temperature streams from effluents and other waste heat sources to heat buildings, boiler feedwater and process water |
| i | Appropriate use of secondary heat and secondary condensate |
| j | Monitoring and control of processes, using advanced control systems |
| k | Optimise integrated heat exchanger network |
| l | Heat recovery from the flue-gas from the recovery boiler between the ESP and the fan |
| m | Ensuring as high a pulp consistency as possible in screening and cleaning |
| n | Use of speed control of various large motors |
| o | Use of efficient vacuum pumps |
| p | Proper sizing of pipes, pumps and fans |
| q | Optimised tank levels |