3 replies to this topic

[Rinoshz]

Sir,

I lost my password so started in this name couldn't recover the old password.

 

Hi

 

I was in need of increasing our CO₂ recovery plant, which is 10 tons per day, to 24 ton per day.  My boss wants to make it food grade quality.  This plant is 20 years old.  Recently, we purchased a used, working  Ingersoll Rand CO₂ compressor with 1,000 Kg/hr output.

Since I am a mechanical engineer and have been in this job for only the past year, I dont know the chemicals required for making this gas food grade.  Can some one help me out with this problem?

 

Now we are having a dual tower activated carbon filter and KMnO₄ scrubber, water scrubber & foam trap. Also need help in the sizing of vessels, and quantity of chemicals required for each vessel. and liquifaction details including the shell and tube condensor design & sizing also.  What capacity (Hp) NH₃ compressor is required?  and the shell tube design also.

One of my friends told me that for making it food grade we need more filters.

I couldnot find the process flow chart/diagram from a fermentation plant.

so please can you send me the links for co2 recovery from fermentation process

The process is- de foamer-2nos water scrubber- co2 compressor- cooling to 20dec C- knock out drum - 2 nos activated carbon filter(used alternatively-100kg activated carbon capacity)- 2 nos Kmno4 scrubber-  water knock out drum- dessicant drier - to liquifaction unit -to storage tank.This is the present process.

with this process we wont get food grade co2 with out smell.

I need help - 1. in this purification process to make it smell free and food grade

2.any extra filter needed

3.sizing and piping design of activated carbon filter vessel 

4. can you help in remodifiying my flow process

5. design of the liquifaction unit with Kirloskar ammonia compressor.

Data :

inlet pressure of co2 is 0.5kg/cm2 temperature 40degC

output pressure of co2 is 21kg/cm2

Data book of compressor not supplied.

Nh3 we are planing to buy from kirloskar what capacity needed

shell and tube design and piping  diagram also needed.

My boss told me to redesign and rebuilt this old co2 plant.

 

 

Rinosh

[breizh]

http://www.buse-gast... ENG single.pdf

 

Rinosh ,

 

Consider this link to support your query

 

Breizh

[Art Montemayor]

 

Rinosh:

 

I have already responded with comments in your prior thread earlier this month.  Why haven’t you continued this topic in that thread? – which is still open and potentially active.  Do you want me to close / delete it?

 

You are obviously overcome with this assignment (which, by the way is ridiculous) and you are going about resolving your stated goal in the wrong way.  You certainly do not put on a shoe before you put on a sock.  That is essentially what you (or your boss) have done by procuring a CO₂ compressor, identifying which Ammonia compressor you are going to buy, and subsequently trying to fit a certain production capacity around these machines without generating a detailed and accurate heat and material balance.  I am certain that you haven’t done the heat and material balance because you haven’t even generated a corresponding Process Flow Diagram for the proposed plant.  Going about managing a project in that manner is asking for troubles – a LOT of very expensive troubles!

 

I have in past years already designed and built CO₂ recovery plants in the field.  I have already generated a heat and material balance for a capacity of 1 tonne/hr, so I already know that it is very clear that you are definitely NOT REDESIGNING AND REBUILDING your old plant as your boss says.  What you are going to wind up doing is designing, building, installing, and starting up a NEW UNIT while the old unit is still operating.  Therefore, you better have available real estate in the immediate area.  It is both impossible and impractical to use the existing equipment and upgrade it to a much higher capacity.  So, my direct comment is: forget that idea.

 

The best designer and fabricator of fermentation plants that I know of is found at: http://www.wittemann.in/.  This is their India facility site.  I recommend you contact them for assistance and possible local help.

 

I have already done what you describe, so I know I can repeat what I have done in the past.  However, I can’t help you do it through this Forum.  Also, I won’t do it for free.  What you lack is detailed engineering and design (including project management) and that is going to cost money (bad news for your boss if he/she is trying to do this on a shoestring).  Engineering manhours are required and they have to be paid for.  That is something you cannot evade.  You are going to need a LOT of water for scrubbing the raw gas – and that will convert itself to getting rid of the smelly and noxious waste water odor. 

 

Read and study the attached literature (especially the consumption table in the brewery .pdf document) and that (hopefully) will give you an idea of what you confront.

 

I hope this effort helps.

 Wittemann Distillery Recovery PFD.pdf   113.08KB   134 downloads

 Wittemann Brewery Recovery.pdf   532.19KB   141 downloads

 Distillery Carbon Dioxide Recovery.docx   74.13KB   107 downloads

 Brewery Carbon Dioxide Recovery.docx   88.93KB   108 downloads

 

 

 

 

[Muhammad Waqas]

Can any one please help me out , how to remove the smell of sugarcane or molasses during CO2 purification or recovery please....