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8 votes
5 answers
2k views

What happens to the waste products from crude oil refining?

The process of refining of crude oil is used to separate crude into fractions of various derived products. For example, crude contains fractions of gasses such as methane, ethane, propane, butane, ...
-1 votes
1 answer
39 views

Why can i not use glue (which contains cyklohexane, petrol and ethyl acetate) for gluing PVC materials? [closed]

The manufacturer do not recommend using glue to gluing PVC. But Why? Thank you for your help.