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Can you please check the blue parts and the whole sentence. Have I omitted any hyphens in chemical compounds? Thank you

Liquid gass processing

Liquid gas obtained from atmospheric distillation apparatus or cracking processes contains sulphur compounds (hydrogen sulphide and mercaptans), which cause corrosion and very unpleasant odours, which have a detrimental effect on the application of liquid gas.
They are removed by refinement which is conducted by the merox process which removes hydrogen sulphide, and merkaptans are by oxydation translated into (transformed) disulphides which are not corrosive, and which are also partially removed.

Mister Micawber · Accepted Answer

Liquid gas processing

Liquid gas obtained from atmospheric distillation apparatus or cracking processes contains sulphur compounds (hydrogen sulfide and mercaptans), which cause corrosion and very unpleasant odours, and which have a detrimental effect on the applications of liquid gas. Hydrogen sulfide is removed by refinement using the merox process, which removes hydrogen sulphide, while mercaptans are transformed by oxidation into non-corrosive disulphides and also partially removed.

(Sulfur/sulfide/sulfite are now the preferred spellings, I believe, over the old -ph- forms.)

Alan.es · Answer

I'm showing my age I suppose. Following your comment, Mr Micawber, I did a Google search and , indeed, the IUPAC ( the International Committe which decides the correct naming of chemical compounds) have ruled that the AE version ,'sulfur', should be used - - and of course all its derivatives.

However I don't think I'll be alone amongst the British who will resist for some time the imposition of AE in international affairs and language. It will certainly not cause confusion or misunderstanding if the 'ph' naming is used in any text.

The most important thing will be to be consistent in one or the other usage. Should we also use 'atmosferic' ? For me it makes sense if we are consistent in all of BrE and change all our 'ph' spellings to 'f' but to do so only in the naming of chemicals doesn't look good to me.

so I'll stick with:

"Liquid gas obtained from atmospheric distillation apparatus or cracking processes contains sulphur compounds (hydrogen sulphide and mercaptans), which cause corrosion and very unpleasant odours, and which have a detrimental effect on the applications of liquid gas. Hydrogen sulphide is removed by refinement using the Merox process, which removes hydrogen sulphide, while mercaptans are transformed by oxidation into non-corrosive disulphides and also partially removed."

I think 'Merox' should be capitalised.

Antonija · Answer

Thank you both. I have to ask something, perhaps I will show my ignorance, but you will at least explain it to me if I am wrong. I am bothered with the blue part. Shouldn't it be there something like WHICH ARE also partially removed?

Liquid gas obtained from atmospheric distillation apparatus or cracking processes contains sulphur compounds (hydrogen sulphide and mercaptans), which cause corrosion and very unpleasant odours, and which have a detrimental effect on the applications of liquid gas. Hydrogen sulphide is removed by refinement using the Merox process, which removes hydrogen sulphide, while mercaptans are transformed by oxidation into non-corrosive disulphides and also partially removed."

Alan.es · Answer

I think it's OK grammatically but there may be other opinions.

"The mercaptans are transformed.........and are partially removed." - We don't need to repeat the 'are', though you can if you want to.

It's not the disulphides which are partially removed - - which is what you would be saying if you put it in at that point.

Chemically speaking it's alittle more confusing but it is correct as it stands though I don't think it's a very precise statement of what happens.

The mercaptans are a range of chemicals some big and some small. The small ones are removed but the big ones aren't ....so the mercaptans are partially removed. The big ones are converted into the non-corrosive disulphides so that's also true.....but....it's not the whole story.

However if that's what the author has written!!!!!

Antonija · Answer

Thank you Alan for your explanation.

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