## Featured Articles

Check out the latest featured articles.

## New Article

Product Viscosity vs. Shear

## Featured File

Vertical Tank Selection

## New Blog Entry

Scrubber Design for Desulfurization- posted in Ankur's blog

# Fuel Gas: Convert Mmscmd To Kg/hr

This topic has been archived. This means that you cannot reply to this topic.
5 replies to this topic
|

### #1 Matteo Giorgio Marrano

Matteo Giorgio Marrano

Veteran Member

• Members
• 47 posts

Posted 01 October 2009 - 02:38 AM

Goodmorning,
i have a process data sheet in my hand for a cyclone scrubber for natural gas.
Attached are the physical properties of the gas written in the datasheet:

Well, i've tried to convert the 36.67 MMSCMD (million standard cubic meters per day) in order to obtain the equivalent kg as indicated in datasheet but something doesn't give me the exact number, can you tell me what is wrong?
This is my calculation:
Note:
- P0 and T0 are respectively 1 bar and 0°C(273.15 K) – Normal Condition (I prefere to work with normal cubic meters)
- Normal Cubic meter: 1.0561 Standard cubic meter

In this manner i have as result 1440000 kg/hr and not 1143600 kg/hr....

Where i was wrong?
Thanks
Matteo

### #2 Matteo Giorgio Marrano

Matteo Giorgio Marrano

Veteran Member

• Members
• 47 posts

Posted 01 October 2009 - 02:44 AM

I attached a wrong file (the pdf one, please delete it..
These are the physical properties of the gas written in datasheet.

### #3 breizh

breizh

Gold Member

• ChE Plus Subscriber
• 3,847 posts

Posted 01 October 2009 - 04:26 AM

Hi Matteo,
Let you download UCONEER from website and click on the blower (right corner) .
Regards
Breizh

### #4 daryon

daryon

Gold Member

• ChE Plus Subscriber
• 131 posts

Posted 01 October 2009 - 08:38 AM

Hi Matteo,

I think the problem might be related to the gas compressibiltiy (Z factor). The compressibilty for the gas will be different at standard conditions (closer to unity) than at actual conditions. You need to multiply by the gas compressibilty, if the value is approx. 0.9 at actual conditions then the by my calculations i get 1,143,600 kg/h. See attached spreadsheet (please forgive crudeness its was done quickly).

Edited by daryon, 01 October 2009 - 08:50 AM.

### #5 breizh

breizh

Gold Member

• ChE Plus Subscriber
• 3,847 posts

Posted 02 October 2009 - 02:27 AM

Hi Matteo ,
Using UCONEER , I got 1.1438E6 kg/h , (standard condition 60F,14.7 PSIa )
regards
Breizh

### #6 joerd

joerd

Gold Member

• ChE Plus Subscriber
• 371 posts

Posted 05 October 2009 - 08:46 AM

Note:
- P0 and T0 are respectively 1 bar and 0°C(273.15 K) – Normal Condition (I prefere to work with normal cubic meters)
- Normal Cubic meter: 1.0561 Standard cubic meter

It looks like you have it backwards:
1 Standard cubic meter (at 60 F, 14.7 psia = 15.56 C, 1 atm) = 1.0561 Normal cubic meter (at 0 C, 1 atm).