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| <Cold Foot>
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I pour my caustic soda/methanol mixture
in two the WVO all at once also. usually added in when the oil is about 125 F seems to work fine for me. and about the wash problems different WVO definitely do different things in my wash cycles as well.. if anyone knows the answer to that question BPINE is asking plz let us know I have wondered the same thing....  Picture_043.jpg (1,838 Kb, 75 downloads) |
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The standard reply that I got to the same question awhile back was that it is best to introduce the meth into the plumbing just prior to the pump . this way the impeller on the pump properly mixes it with the oil and if introduced at the right rate it is "metered" so as to properly distribute it throughout the oil . If you dump it on top of the oil , it is said that you will immediatly start to make soap in the areas of the oil where there is an abundance of lye . This will use up some of your lye before you get the oil mixed properly and then you will have an incomplete reaction due to the insufficient lye . I may be a little off on some of this , as it just from memory and I can not seem to find the old thread . If so , hopefully someone will correct me with a better answer .
Shannon |
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BTW I believe that the worse the oil titrates the more noticable the incomplete reaction is , and the harder to wash it will be .
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| <Cold Foot>
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dodgerram
thx for advice I have been mixing methanol/caustic soda with a 10 in. drill press with a mixer bit  and because my pump sucks , but i got a new one on the way from Utah biodiesel supplies .. I just started out and of course I went to the local hardware store and bought the wrong type of pump , too small to effectively move oil the motors already just about burned-out.. my 2005 love biodiesel its awesome stuff running a 25% blend right now can't wait until it gets 60 below zero Fahrenheit here in Fairbanks .. lols guess I'll be lucky if I can run B2 but that's OK I make it in my garage and I'll just use it in the summer I guess photo of my truck attached  Mom_Bug___the_moose_005.jpg (1,015 Kb, 87 downloads) |
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Cold Foot-
you need to make your pictures smaller before posting them- if you attach them as part of your post then the site has to pay for it and bigger picures cost more than small ones. If it's not directly relevant to the post AND it's a HUGE photo, it's kind of hogging bandwidth unnecessarily. BPine wasn't asking about equipment in the first post, and you replied with a 2,000 KB photo. a 1,000 KB picture of your truck was kind of an unnecessary use of other peopl'es money also. Photos are great but make 'em smaller. For example many people's posted pictures are around 55 KB, your first one is almost 2000 KB, that costs money and the same effect could be done for 55 KB. Also they take a really long time for people on dial-up to view. to re-size photos: Use photoshop or GIMP (GIMP is like Photoshop but is free to download online) or microsoft picture editor or your camera's editing software something like that, to re-size them to 640 x 480 for best results please. Mar ************ Biodiesel Classes and Advanced Topics forums around the country: www.girlmark.com/tour Biodiesel Homebrew Guide: www.localb100.com/book.html Diary of a Mad Scientist blog http://girlmark.com/blog |
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Thanks for the info dodgeram, makes some since. I try to search before every question but most of the time I can't find a thing using the search function.
Mark what is your take on this? I know this has probably been covered but us newbie's need a jumpstart. Also it does not really explain this in your book unless I am blind which could be, might be a good thing to explain in more detail. |
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Coldfoot , You will still need to mix your methanol and lye first and then add it to the mix . Depending on the batch size you desire this can be done alot easier using a carboy as demonstrated here :
http://www.biodieselcommunity.org/ look for the carboy mixer link on the left |
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I think that the process of introducing methoxide should be as slow as possible especially if you're using short mix times (1 hour) and slow reactor pumps (appleseed style harbor freight pump) rather than really vigorous agitation.
The methanol and oil dont' want to mix very well right away, and distributing the methoxide throughout the oil seems really important because otherwise you may have pockets of underreacted oil spinning around and not blending throughout the rest of the system if your mixing isn't very good. So, blend it in slowly if you're using a pump-mixed system and if it's a slow pump like most of us use. Mark ************ Biodiesel Classes and Advanced Topics forums around the country: www.girlmark.com/tour Biodiesel Homebrew Guide: www.localb100.com/book.html Diary of a Mad Scientist blog http://girlmark.com/blog |
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| <Cold Foot>
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girl mark
for my photo's costing money i donated a decent chunk to this site about a week ago so no problems |
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| <Cold Foot>
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girl mark, I donated about $250 almost a week ago to this site through paypal so hopefully that will take care of my photos |
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| <Cold Foot>
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Also I am on a 2mb x 2mb full-duplex'
so I see no problem with the photo size but just for getting onto Me's sake. Anyone using a 56 cable modem please do not download COLDFOOTs photos they are unnecessarily large and will consume a lot of your bandwidth with 56KB and still wanting to download my photos start before you go to work by the time you get home they will have loaded girl mark please stop following me around on the site and making little remarks about everything I do say and so on it's to say the least very GAY get a life |
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wow! he called me Gay! again! how did he ever know? what will I tell the boyfriend (who'se from fairbanks like you and says it's full of rednecks. I guess he's right...)
by the way I've only commented on two of your posts. Grow a thicker skin, it's needed out in the real world outside of Fairbanks. Mark ************ Biodiesel Classes and Advanced Topics forums around the country: www.girlmark.com/tour Biodiesel Homebrew Guide: www.localb100.com/book.html Diary of a Mad Scientist blog http://girlmark.com/blog |
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| <Cold Foot>
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Dude I said what you're doing was GAY
did not call you gay so stop with the he is attacking me bull crap |
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WOW I leave for a few minutes and look what happened to my cool not gay thread !!!! My attempt at humor to lighten things up a bit.
CF if you are rating your own threads that is kind of strange don't you think? Thanks for the explanation Mark that helps to understand how this works. See this site is cool and does help. |
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If you tie your methanol into the line just before the pump and use the valve to control the speed at which it mixes. Wide open to mix fast and almost all the way closed to mix slow.
Thanks, Andrew Real men love JESUS! |
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After the pump inline mixing should do just as well without corroding up the cheapo Chicago Electrics 1/2 hp pumps with the NaHO Methanol mix.. Thats how I'm building my processor because it just made sense to swirl the inlet stream as it goes back into the water heater.
Barracuda If you want something done right sometimes you gotta do it yourself! |
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how do you propose to introduce the methoxide solution on the positive pressure side of the pump? what components in the pump chamber will corrode in a caustic solution? what corrosion have you witnessed in the pump? Have you actually seen corrosion, or is this just "what if" hypothesizing? |
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Cold foot,
Re 'Mom bug' photo. Where is the truck you mention ? The picture I am getting is just a few trees, taken at night. dva Anyone else see a truck ? |
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This discussion is about methanol mixing. If for nothing else but respect for the person who posted the topic, please take the discussion of the other stuff with no relevance somewhere else.
Perhaps the moderator can just delete the off topic crap |
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