Poppy and the Steam Forum and Power Forum

Welcome to the steam and power forum, a bulletin board dedicated to questions and answers to Steam Plants and Power Generation Plants for steam boilers, turbine generator and heating problems. Dedicated to power plants, power generation, supercritical, and heating plants as well as steam boilers, steam turbine generators, gas turbines or combustion turbines, hrsg, steam heating, pressure vessels, steam line, including ASME questions and more. Remember the forum is made up of volunteers from experts to beginners. Unfortunately, we cannot allow free commercialism that promotes products, services, or sites.
 
The Steam Forum and Power Forum is being sponsored by the following:
Industrial Training School - Main Distant Learning
 
Poppy   Steam Forum  

Murphy on About fuel additives.. gas turbine? boiler?...

By: Murphy [21] 4 Stars
Date: Tuesday, October 31, 2017
Time: 1:34:59 PM

I think you have a pretty good handle on fuel additives and how they manipulate Ash deposits. Your question seems to talk more about pretreatment, but I thought it might be helpful we talk about MgO and MgOH additives in liquid and solid fuels.

I would like to say that the end result is the same regardless of what it is being used. The object of the fuel additives you discussed are for corrosion control and suppress the high temperature corrosion reactions -formation of ash deposits and I dont mean just coal fired boilers but in combustion turbines or gas turbines.

Basically Additives such as Magnesium Oxides MgO and Magnesium Hydroxides MgOH and Magnesium Sulfate MgSO4 manipulate the combustion high temp corrosion reactions so the temperature at which these metal oxide or ash condensates form is lowered so they dont form on hot metal surfaces.

MgO and MgOH is sometimes less costly than MgSO4. So, that is a consideration.

MgO and MgOH will become corrosive at a temp of around 1750F or there about, but under that it works great. So, we see it is used on Boilers fuels. In a Combustion Turbine the temperatures are more tricky than a large furnace, but that is my opinion.

FYI - Sulfonate is an organo sulfur salt. We interchange this term by oversimplifying to say Magnesium makes the Sulfur Acid a Sulfur based Salt using Mg.

In pretreatment of Combustion Turbines, the use of Magnesium Sulfate MgSO4 is used to treat Vanadium Oxide deposits on Hot Section components, but not just VO for there likely is other trace metals that will condense out on the hot section components and corrode and severily just like on a boiler superheater and reheater.

I think it is important to understand the form that Sulfur take and it is generally in the form of FeS2 Pyite and or Na2SO4 Sodium Sulfate in the fuels. Na2SO4 is a bad player in Combustion Turbines hot zones and Boiler Superheaters and Reheaters. Na2SO4 has a melting temp around 1000F and mixed in the ash. Ugh doesnt begin to express the undesirability of Na2SO4 in fuels.

My general impression is the MgSO4 to V ratio is around 3:25 plus or minus some number, and it is not a rule for it is not right, so never follow it for we must and should consult with a professional to get it right and have your fuel pretreatment system double checked.

Maybe someone more smarter than me can readdress your question, but this explanation should help.

Viewed 82 times
Published on steamforum.com

 

 


There are three-methods to find all the replies to this steam or power forum question or answer: 1) Use the 'Next >>' or '<< Previous' menu links above, or 2) Look at the year of the post and click on the applicable year an scan the postings for the date/title, or 3) Use the 'View Post Tree' feature, which is new to help you find all tree-truncations to the postings and replies on the steam & power forum that you are interested in.

Featured
Is Cp/Cv applicable to steam to calculate?
By: Kent mayhew [2161]

The reason that isobaric Cp heat capacity is greater than isometric Cv is that isobaric involves expansion. Remember our atmosphere has mass, so in order for a system to expand it must displace that mass. And this requires work. So Cp requires work plus the energy to heat the gas , while Cv only requires the energy to heat.

So for all gases and/or steam the work required to expand a given volume is the same that being the work required to displace our atmosphere by a given volume.

Hence t....   Read All
Advertising Info - Click Here!

It's hard not to look at this ad at least once, then you go to the next page an notice it again. Maybe you will not read the message, but you will be thinking about the brand and we call that brand impressions.

Imagine your static or animated display advertisement placed here, and if that is not enough you can include text too to expound on the virtues of your services and or products.    In addition, you can benefit by using our new advertisement feature to have your video included in your ad space.  Wow, make an infomerical with text and a display by combining all features to enhance the readers or audience's experience using your brand.  Ads can be much more than a static display ad. Here is an example of how your video could be used or position in this ad space:

 

Caption: This public domain video shows from Nationawide Boiler and they are the first to provide a 1000-BHP trailer mobile rental unit using a Superior Boiler.  The author of the video is not an advertiser and is being used to show how the video ad can be of value to the reader since you have already being viewing the video.  It is hard not to think about the authors brand after viewing the video ad.  This is the benefit of Branding.

Your advertisement impressions are genuine with removal of bots, crawls or spiders in your impression count, and we take it one step further, for hackers and malicious-padders get excluded when they are identified. 

 

 

A Long-Game that Earns Tomorrow's Sales


Click on this Promotional Advertisement to Contact Us Today!

Good Branding Puts Your Brand or Company in the Front of a Decision-Maker’s Mind for a Purchase either Months from Now or Five-Years in the Future.

Good branding makes your brand or company the leader in a crowded field of other brands or companies vying for your potential or existing client's attention. 

An invitation to the buyer's table to negotiate potential sales from $thousands to $millions of dollars in any of these: Systems sale, Capital Equipment, Upgrades & Modifications,  Repairs, or Capital Project becomes easier now with a recognized brand that thinks forward by brand advertising.

Your advertising will cost you an unbelievable low amount, so ask for our Media Kit that has Specs and Rates. 

Below is some of our demographic data for steam and power forum users will speak for itself:

Bus Sector Percent   Education Percent
Manufacturing 11%   College 51%
Power Gen 20%   Grad School 20%
Chemical & Petroleum 15%      
Medical Facilities 6%      
Pulp & Paper / Forest 7%      
Pharmaceutical 7%      

Our network works hard for you with placements for full coverage on part of the network, or full network placement.  Brand yourself today and don’t miss-out on being invited to your client or future client's table because they forgot you.  Be the leader they will remember and be part of their capital project.  Tomorrow’s clients are your future.

 

Advertising and Marketing Agency for the steam and power forum
PE Marketing, LLC

Branding.jpg

Sponsors/Advertisers
Industrial Training School - Maintenance
 
Industrial Training School - Steel Making Tutorial
 
Confidentiality, Disclaimer; Policy
STEAM and POWER FORUM
© 2001 to Steam Forum, All Rights Reserved.
PE Marketing LLC is representing the steamforum for advertising and marketing
Valid XHTML 1.0 Transitional