Natural Gas Quality Consideration
Natural Gas Quality Consideration
(OP)
Hi everyone,
I wonder why the quality of natural gas is based on its methane composition? while we know that pentane,hexane,etc has more carbon and hydrogen..
What is the consideration for the issue?
I really appreciate any help.
Thanks before
I wonder why the quality of natural gas is based on its methane composition? while we know that pentane,hexane,etc has more carbon and hydrogen..
What is the consideration for the issue?
I really appreciate any help.
Thanks before





RE: Natural Gas Quality Consideration
David Simpson, PE
MuleShoe Engineering
"Belief" is the acceptance of an hypotheses in the absence of data.
"Prejudice" is having an opinion not supported by the preponderance of the data.
"Knowledge" is only found through the accumulation and analysis of data.
The plural of anecdote is not "data"
RE: Natural Gas Quality Consideration
Look up WOBBIE INDEX and the relationship of gas gravity to orifice flow.
RE: Natural Gas Quality Consideration
zdas04, isn't it good to have a greater value? thus, the energy produced will be higher. And also, if we have almost the same amount of methane and pentane, then we aren't able to define the heating content, are we?
dcasto, what about if we supply more air for the gases?
Sorry for my silly respond, I'm stil a beginner though
RE: Natural Gas Quality Consideration
David Simpson, PE
MuleShoe Engineering
"Belief" is the acceptance of an hypotheses in the absence of data.
"Prejudice" is having an opinion not supported by the preponderance of the data.
"Knowledge" is only found through the accumulation and analysis of data.
The plural of anecdote is not "data"
RE: Natural Gas Quality Consideration
Gas is the same. You need a standard or closely controlled spec for heat and for suppliers to produce efficient low cost burners and equipment. The cost impact of changing burners or offering different versions is very costly. When countries changed from coal gas to natural gas, there was a huge cost in changing burners on boilers and cookers due to the different properties. Not all gas fields have other components available, I've seem C1 components of >95% coming out of the ground and ail the other components can be removed relatively easily by cooling of the flow.
So basically there is now simply far too much installed equipment to start messing around with the input gas for little or no overall benefit.
My motto: Learn something new every day
Also: There's usually a good reason why everyone does it that way
RE: Natural Gas Quality Consideration
RE: Natural Gas Quality Consideration
The state of Wyoming puc came out and said that pipelines could not change their wobbe number more than 7% which created nightmares because they didn't take into account appliances that were installed. They made it illegal to supply gas that matches what all gas appliance companies built. Cute