The image below is a schematic flow diagram of a typical oil refinery that depicts the various unit processes and the flow of intermediate product streams that occurs between the inlet crude oil feedstock and the final end products.
In order to check-in into a hotel, the person must be 21 years old.  If the person is younger than 21, then a parent or guardian can  give permission for them to check-in. 1 person found this useful.
What is the minimum check in age for most hotels? Can I check into a hotel in Malaysia if the check-in is under my name when I'm actually only 19 and not yet 21? Why can U.S. citizens vote and enlist in the military at 18 but not legally drink alcohol in most states until age 21?