um. The state of New Mexico opposes the newest plant proposed here. The EPA issued a permit anyway.
On Wed, Sep 24, 2008 at 5:31 PM, Robert Munn <[EMAIL PROTECTED]> wrote: > I've been inside a bunch of clean coal plants, and I've seen experimental > boilers for things like pressurized fluidized bed technology. The technology > works, but it is very expensive compared to traditional coal-fired power > plants. Technologies that are employed: > > 1. Fluidized-bed boilers - A boiler is a big furnace with a vertical housing > inside it that holds water. The heat from the furnace boils the water, which > turns into steam and drives a turbine, generating electricity. These boilers > use injectors to shoot pulverized coal into the furnace, creating a vortex. > The combination of very high temperatures, the pulverization of the coal, > and the vortex action burns a substantially higher percentage of the > combustible material than in traditional boilers. > > 2. Coal Pulverization - The coal is turned into a fine-grained powder to > burn as much of the material as possible. > > 3. Scrubbers - The exhaust from the furnace passes through a series of > scrubbers that remove particulate matter and chemicals. > > There are some plants where the by-product from the furnace is used to > create gypsum for wallboard. > > > All of this technology is great, but as I said, it is expensive. You might > expect to pay a few hundred million to a billion dollars to retrofit an > existing plant with clean coal technology. Energy companies only invest the > money if they can pass the costs along to their customers, but since utility > rates are regulated almost everywhere in the country, it is very difficult > for providers to raise rates, so they stick with older technology. > > So, if you are worried about coal pollution in electricity generation, push > your state's regulatory body to allow the local utility to raise rates in > order to either build new clean coal plants or retrofit existing ones. > > > On Wed, Sep 24, 2008 at 4:07 PM, Michael wrote: > >> I was reading a report a few years back about the various 'games' companies >> were playing to get certain moneys from the govenment for developing clean >> coal tech. Most of them were out and out fakes. I hope they've come closer >> to reality since then. >> > > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Adobe® ColdFusion® 8 software 8 is the most important and dramatic release to date Get the Free Trial http://ad.doubleclick.net/clk;207172674;29440083;f Archive: http://www.houseoffusion.com/groups/CF-Community/message.cfm/messageid:270729 Subscription: http://www.houseoffusion.com/groups/CF-Community/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.5
