Plant and method for producing liquefied natural gas

A method for producing liquefied natural gas comprising the steps of:

• providing a plant for producing liquefied natural gas comprising:
• (a) a carbon dioxide recovery apparatus for natural gas absorbing and removing carbon dioxide from natural gas,
• (b) a liquefying apparatus having a steam turbine, for liquefying the natural gas from which carbon dioxide has been removed by the carbon dioxide recovery apparatus,
• (c) boiler equipment for supplying steam to the steam turbine of the liquefying apparatus, and
• (d) a carbon dioxide recovery apparatus for combustion exhaust gas including an absorption tower for absorbing carbon dioxide from combustion exhaust gas exhausted from the boiler equipment by absorbing liquid, and a regeneration tower for separating and recovering carbon dioxide from the absorbing liquid;
• absorbing and removing carbon dioxide of natural gas by the absorbing liquid in the carbon dioxide recovery apparatus for natural gas;
• liquefying the natural gas from which carbon dioxide has been removed by the carbon dioxide recovery apparatus for natural gas;
• absorbing and removing carbon dioxide of combustion gas exhausted from the boiler equipment by the absorbing liquid in the carbon dioxide recovery apparatus for combustion exhaust gas;
• and
• regenerating the absorbing liquid by separating and recovering carbon dioxide from the absorbing liquid containing carbon dioxide in the regeneration tower of the carbon dioxide recovery apparatus for combustion exhaust gas.