Travel Document
The travel document for foreign nationals is a passport substitute that may be issued to foreign nationals who can prove that they do not possess a passport or passport substitute and cannot obtain one by reasonable means. The scope of validity of a travel document for foreign nationals generally excludes the country of origin.
As a general rule, your home country will issue you a passport. A travel document can only be issued in exceptional cases.
The travel document for refugees is a passport substitute issued to a refugee as defined by the Geneva Convention Relating to the Status of Refugees (GCR). It is issued to provide the refugee with protection from persecution in their country of origin.