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.
18 is a good rule of thumb, if you have a picture I.D. and a credit card or debit card. In most hotel chains in the United States, customers need to be 18 years of age to rent a hotel room. The age is often 17 in Canada.With locally-owned hotels, the age of motel rental is often left to the discretion of the hotel owners or the staff on hand when you ask to rent a room.As big of an issue as age is whether you have a credit card to rent the room with.he age is often 17 in Canada. With locally-owned hotels, the age of motel rental is often left to the discretion of the hotel owners or the staff on hand when you ask to rent a room. As big of an issue as age is whether you have a credit card to rent the room with.