Specific cost for CO2 capture provides a parameter that can be used for comparison with capture systems across different industries and varying scales. Specific costs tend to be reported as CO2 captured and CO2 avoided. Most LNG plants discharge CO2 without considerations to capture. The environment becomes the receiver and its attendant adverse effects.
Clean-energy advocates have advanced a solution – e-drive technology that would greatly reduce the significant carbon output generated by most LNG plants by using electricity instead of all gas in the production process (which includes cooling the gas to a liquid form so that it is a small fraction of the volume, making it easier to transport to market where it is warmed again and sold as a natural gas). But few of the proponents are considering e-drive technology.
Ref : B.C. promises world-leading emissions targets for LNG industry with new law
by JUSTINE HUNTER
Victoria — The Globe and Mail
Published Monday, Oct. 20 2014, 5:11 PM EDT
Last updated Monday, Oct. 20 2014, 9:28 PM EDT
I stopped all experimental work on aromatic molecules in the mid 1970's and devoted myself fully to research in science policy in developing countries and specially the ARab countries.
Yet every now and then I read some of the literature because I miss working in that field.
Maddali thank you for the suggestion of e-drive technology instead of the usual cooling of the gas to liquid.
The simplest way is to make the very valid assumption that for each unit work-energy (say KwHr) produced by LNG, the cost to replace this by solar or wind (the only known alternative at this time) will at least be double. this extar cast can then be deducted from the 'Carbon Charge' from the amount emitted by producing a KwH of 'Energy'. roughly, the all-in cost of producing power by LNG in North America is ~5 cents, wind and Solar will by definition be >10 cents 9considering the high capital costs of solar an dwind farms that have to be designed for 3x the capacity as they are only available ~ 30% of the time due to lack of wind or sunshine .
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