Division BAT 52 In order to improve the general environmental performance of the combustion of gaseous and/or liquid fuels on offshore platforms, BAT is to use one or a combination of the techniques given below.
United Kingdom
| Techniques | Description | Applicability | |
|---|---|---|---|
| a. | Process optimisation | Optimise the process in order to minimise the mechanical power requirements | Generally applicable |
| b. | Control pressure losses | Optimise and maintain inlet and exhaust systems in a way that keeps the pressure losses as low as possible | |
| c. | Load control | Operate multiple generator or compressor sets at load points which minimise emissions | |
| d. | Minimise the ‘spinning reserve’ | When running with spinning reserve for operational reliability reasons, the number of additional turbines is minimised, except in exceptional circumstances | |
| e. | Fuel choice | Provide a fuel gas supply from a point in the topside oil and gas process which offers a minimum range of fuel gas combustion parameters, e.g. calorific value, and minimum concentrations of sulphurous compounds to minimise SO2 formation. For liquid distillate fuels, preference is given to low-sulphur fuels | |
| f. | Injection timing | Optimise injection timing in engines | |
| g. | Heat recovery | Utilisation of gas turbine/engine exhaust heat for platform heating purposes | Generally applicable to new combustion plants. In existing combustion plants, the applicability may be restricted by the level of heat demand and the combustion plant layout (space) |
| h. | Power integration of multiple gas fields/oilfields | Use of a central power source to supply a number of participating platforms located at different gas fields/oilfields | The applicability may be limited depending on the location of the different gas fields/oilfields and on the organisation of the different participating platforms, including alignment of time schedules regarding planning, start-up and cessation of production |