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Ethanol Handling

  • 1.  Ethanol Handling

    Posted 11-16-2022 15:32

    Hello everyone,

    We are currently positioning to start getting into RTD's and hard teas are next up here. I was curious what challenges you all faced when it came to handling and manufacturing with 190 proof ethanol. We are currently looking into mixing tanks and hazmat storage for the ethanol drums. Also have been dabbling with the fire marshal and trying to be up to code with explosion proofing the equipment.

    I appreciate the time to read this and welcome all feedback!

    Cheers!



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    Nate Prusak
    Maintenance Technician
    Great Lakes Brewing Co
    Cleveland OH
    (216) 771-4404
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  • 2.  RE: Ethanol Handling

    Posted 11-17-2022 11:40
    Hi Nate,
    I found both of these very helpful in setting up a safe environment for working with high proof ethanol.
    https://www.mbaa.com/brewresources/brewsafety/BrewSafety/Flammable%20Liquids.pdf
    https://www.mbaa.com/publications/tq/tqPastIssues/2021/Pages/TQ-58-3-1003-01.aspx

    We also found that our state distillers' guild was happy to review our processes for us.

    Tim

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    Tim Mayhew
    Brewing Manager
    Troegs Brewing Co
    Hershey, PA
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  • 3.  RE: Ethanol Handling

    Posted 11-18-2022 17:51
      |   view attached
    Good afternoon Nate

    If you are using hose to transfer the ethanol, make sure that the assembly has continuity. Meaning the fittings are grounded to the hose wire. If the hose does not have a wire you may want to consider getting hose specifically for the transfer process to avoid a static charge. Having continuity with also allow you to ground your system from pump to tank. I'm attaching a TBT that may help. There's also a webinar on the MBAA site by Mark Jaeggi that is very informative on Flammable Liquids.

    Cheers!
    Rob Williams

    ------------------------------
    Rob Williams
    Sales Manager
    Alliance Hose & Rubber
    Elmhurst, Il
    708-932-8386
    rwilliams@alliancehose.com
    ------------------------------



  • 4.  RE: Ethanol Handling

    Posted 11-18-2022 17:52
    Here is a podcast that I did that covers the TQ paper that may be useful. Master Brewers Podcast Episode 235: Flavorings That Go BOOM in the Night
    Also, NFPA 30 has lots of good information.  The link below is free access, but it is a little cumbersome to go through the code, but it will work. 

    Free access

    This is the link to the Federal OSHA Flammable Liquids code 1910.106.
    1910.106 - Flammable liquids. | Occupational Safety and Health Administration (osha.gov)

    Cheers.

    Mark



    ------------------------------
    [Mark] [Jaeggi]
    [Owner]
    [Sabhailteacht Solutions, LLC]
    [St. Louis] [MO]
    [(314) 452-1939]
    [Beer Safety is My Business]
    ------------------------------



  • 5.  RE: Ethanol Handling

    Posted 02-10-2023 16:49

    Dear Nate:

    One of the most obvious and also the most overlooked procedure for highly flammable materials is grounding.  Make sure the drum, the pump and any other equipment handling the ethanol is grounded via a wire and a clip connected to a metal post or a nail in the ground. Electrostatic electricity is easily generated and can ignite the vapors in the drum headspace or pump and hoses.

    If extensive handling via pouring is performed, make sure the area is explosion proof and no ignition sources or sparks are present.

    Cheers, 

      



    ------------------------------
    Dirk Loeffler
    Loeffler Hygiene & Safety Solutions
    (404) 229-7583
    loeffler.dirk@loefflerhygiene.com
    ------------------------------



  • 6.  RE: Ethanol Handling

    Posted 02-11-2023 08:43
      |   view attached

    Good morning Nate

    I agree with Nate on ground and creating continuity throughout your system. I'm attaching a Tool Box Talk that relates to making sure you ground your fittings to the hose (If your hose is wire reinforced). Hopefully this will help in grounding your entire system.

    Cheers!

    Rob



    ------------------------------
    Rob Williams
    Sales Manager
    Alliance Hose & Rubber
    Elmhurst, Il
    708-932-8386
    rwilliams@alliancehose.com
    ------------------------------



  • 7.  RE: Ethanol Handling

    Posted 02-13-2023 16:09

    Hello Nate,

    My past experience in a similar field was to retrofit our facility to a hazloc environment for using 95% ethanol in substance extraction. The extraction process includes flammable ethanol handling, storage, and spill control. Although this project was in Ontario, Canada, our consultant did review the NFPA, Canadian National Fire Code and Ontario Fire Code all together. You may want to check local jurisdictions for their guidelines.

    1. local fire marshal and building department usually can tell you from their prospointives. This may not work so well if you are in rural area. You can also talk to specialists such as Fire Code consultant and engineer as how I started on my project to obtain a feasibility study report.
    2. Code consultant will need to understand your process, location/space to run the process, where and how much ethanol will be used and stored, type of equipment required, etc. then a feasible study will provide what needs to be done to adapt the new process. The first important point is to limit flammable vapour and appearance outside the closed-loop process. In this report the area will be clearly defined as a C1D2 hazloc.
    3. Civil engineer and electrical engineer will evaluate the current building configuration and come up with a solution to meet the C1D2 hazloc. Basically, how to effectively avoid ethanol vapour accumulation and ignition by ventilation, grounding, fire separation, spill control, etc. Training, SOPs, posting requirements may also indicated in the feasibility study will be on your company to execute.
    4. Once the area is defined, and a retrofit design is made, it is time to submit for fire marshal and building department to review and apply for building permit to perform the retrofit construction if needed.

    It will make things much easier if the process is in a separate building, or the ethanol gets diluted at the point entering the building so all the potential hazards can be limited. If I recall correctly, when it is below 21% is generally much safer to handle inside the building.

    In addition, you may also want to let your insurance company know as this may impact on your current policy.

    Hope this helps and happy to chat further if you like.

    Cheers,



    ------------------------------
    James Tien
    Whitby ON
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  • 8.  RE: Ethanol Handling

    Posted 02-14-2023 12:09
    Edited by Walter Heeb 02-14-2023 22:14

    Dear James:

    I am reposting this since I made an error the first time around.  I mixed up building code with hazmat regulations. Just have been dealing too long with chemicals, I guess;-)

    I can see how one would classify in this category if large amounts of ethanol are handled in open tanks, like often the case with mixed beverages and soft drinks.  The volume of flammable vapors would definitely create an environment that justifies the C1D2 classification.  However, most breweries use closed tanks, and the significantly lower volume of flammable vapors should (IMHO) push you outside the C1D2 classification.  I could see though how civil engineers err on the side of abundance and caution.

    Therefore, consulting with an experienced expert for these matters is extremely important and can make the difference between having to build a dedicated building, an extensive retrofit or other extensive building measures as opposed to implementing ventilation and explosion proof electrical, which is often already in place in milling rooms and other areas in the brewery.

    Find somebody locally (ideally, in same state if not possible) who can advise you on the requirements per your local fire code, which supersedes the national fire code and is often more stringent.  Ask local businesses who handle flammable materials similar to yours and inquire to who they worked with and what their experiences were. 

    Cheers,

      



    ------------------------------
    Dirk Loeffler
    Loeffler Hygiene & Safety Solutions
    (404) 229-7583
    loeffler.dirk@loefflerhygiene.com
    ------------------------------



  • 9.  RE: Ethanol Handling

    Posted 02-14-2023 16:04

    Hello Dirk and all,

    Although I am not a qualified engineer or code expert, through my past researches and what I was told by three independent fire code consultants the ethanol handling falls under C1D2. As I mentioned in my earlier reply, consult to the local jurisdiction and qualified engineer/consultant will be the best path to be sure the project gets done right. 

    For Dirk's concern regarding the classification, here is I quickly found online which is inline with my statement:

    "CLASS I, DIVISION 2
    Class I, Division 2 locations are those in which volatile flammable liquids or gases are handled, processed or used. Normally they will be confined within closed containers or in closed systems from which they can escape only in the case of rupture or deterioration of the containers or systems."

    This website also explains other classes and divisions. https://www.ldpi-inc.com/resources/classification-codes/#:~:text=Class%20I%2C%20Division%202%20locations,of%20the%20containers%20or%20systems.



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    James Yii-Jen Tien
    Whitby, ON
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  • 10.  RE: Ethanol Handling

    Posted 02-14-2023 16:45
    Dear James:

    You are actually correct. I have been dealing with chemicals too long and got building code and hazmat mixed up. 

    Although I would still argue that through proper handling and ventilation, a C1D2 classification could be avoided. 

    But you are correct. Many get classified in this building code. 

    Cheers,

    Dirk

    Dirk Loeffler
    Loeffler Hygiene & Safety Solutions, LLC
    Telephone: (404) 229-7583
    Fax: (404) 393-7015
    Sent from my mobile device





  • 11.  RE: Ethanol Handling

    Posted 02-13-2023 16:10

    Hi All,

    There are a lot of considerations that need to be made before handling high proof spirit; like making sure your gaskets are the correct type to handle spirit. I highly suggest consulting with someone knowledgeable about code and requirements both in your area and federally. Another commenter mentioned using the local state distiller's guilds as a good resource and I whole heartedly agree. There are also a couple of professional safety companies like ISTS KY put out a lot of great info on safety when it comes to handling high proof spirit. Finally, I recommend looking at some of the DISCUS's and  American Craft Spirit Association (ACSA) open safety documents; they are always a great resource.



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    Reade Huddleston
    Experienced Brewer and Distiller
    913-981-3727
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