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Z, Unfortunately my predictions are based on the product shipped by the refiner, IE: BOL. Thanks I'll look at the link you sent. Thanks to all of you.

BI, I do appreciate all the statistics which I have memorized from years ago, 75% of my business is in calibration of LPG meters, so you can understand that compensation, SG, pressure correction are all very very familiar territories for me. A hydrometer/densitometer are not in my list of...

Simply put, the Liquid Propane(you would visualize leaks) comes in on rail, the rail cars are allowed to be static for a period of time so as to allow them to settle(sloshing), they are stick read(bleed out)and compared to the figures sent by the loading facility(refinery), they temperature...

OK, I was hoping a simplified question would suffice. You have more knowledge of the chemical properties than I do. I didn't believe the mass meter's reading of .5535 +- density. My experience is listed above. The reason for measuring volumetrically is my competition was in with their small...

Depending on the size of your pump, station, line and environment(as someone said,to little info), you can hot tap( check with management and local codes), bypassing the flow stream or when you have the access to the stream during down time, it is not difficult to build at each station a bypass...

One of the previous posts reminds me of a situation I ran into last week. Is there a chart which could at least loosely suggest a nominal density of propane based on visual indicators of pressure and specific gravity. I am for the 1st time testing a mass flow meter, we can not get repeatability...

dcasto! I know, so any suggestions ? Thank you ! Sincerely.

Ok, now I am at the point where I need to start compiling all your great info, and some from other engineers I found to find out if this is feesible(?)I have looked all through this site to find out how to contact people to know avail. I fully expect this post to be rejected, and hopefully when...

Paul, I use the following company for Rego LPG equipment. They are a verygood distributor. If they can't help you, they'll tell you where you can go. I hope this isn't out of ET's rules of use. http://www.lpgandnh3.com/contactinformation.htm

OK guys, this is all I have for now. Do you still have interest ? 55-65% methane, 30-35% carbon dioxide, with some hydrogen, nitrogen and other traces.

It is only 60% methane. I am working on getting the rest.

dcasto and nuts(sorry, just couldn't resist). I'll start with this. In order for this system, it needs to be on sight, locally of the methane. IE: feet form gas inlet. Sorry for being a bit ignorant and to lazy tonight to Google, but what is LIN (Liquid nitrogen) ? Also, can you simplify...

Approxiamately 200+ gals/day . Maybe as much as 300. Don't laugh yet. What did/would yours cost, and what was the gas analysis at best ? If I may ask.

Thank you "someguy". The project just hit it's first wall, a major hurdle. There is more startup capitol needed than is currently budgeted. That being said, I was hoping to put together a package form scratch. I called around and found a firm that does turnkey, and the funds are not there...

Good point. I'll keep it in mind.

I will be employing firms to assist in engineering the project. I just need to get some sort of idea as to how much it will cost to purchase the equipment. Building codes are no t necessary at this time, however I am quite familiar with NFPA 58. I am sorry about being so vague, it is due to...

Hi, Thank you, yes I realize it is a new game. I am not so much interested in engineering the equipment as to assemble all the structures and have the tanks built to spec. Most components will be purchased through existing suppliers. I do not want to cross boundaries with Eng-tips so i don't...

I am new to cryogenics. I have been singled out to engineer a system to convert methane gas to liquid. Create storage, and transfer the product to new locations. I have lots of experience in Liquid propane, so the concept of cryogenics is not totally foreign, although condensers are.Any help in...

You will be sorry if you don't mix it at least 10-1. If it sat in a vented barrel, it will have taken on lots of moisture. as the man said, for a few hundred dollars, burn it on a plie of wood, and you didn't hear that from me. !!!!!!!

Filas, 1st, we assume it is liquid propane. 2nd, pump is belt or cface or gear drive. 3rd, size of plumbing and size and type of pump,(PD,centrifigal or compressor). If you tell me pump model, I most likely can give very simple solution. DO NOT BYPASS BACK TO INLET STREAM, especially if you...