Chemical and industrial chemical substances are used in every area of industry. Much of these chemicals are transported from one country to another by ships. Most of these ships are container ships and chemical tankers. Chemical tankers are included in international logistics because they carry large amounts of different cargoes. Moving more suitable and larger amounts of cargo from one port to another plays a role in the provision of trade. The transport of chemical loads generally takes place in 4 stages with different ship types. These stages are: tank preparation, loading, transportation, and discharging. This chapter explains these steps.

Liquefied petroleum gas is used as an energy source in many areas of the world. It is among the most important fuels used worldwide. Transport of this type of petroleum products between ports is carried out on a large scale. These cargoes are transported in ship types called LPG tankers. Transported LPG gas formation must be carried in liquid form. Particularly in these liquid formations, the transportation of the LPG vessels is divided into different types and it is carried under the name of Fully Refrigerated, which authors call full cooling. LPG is a highly sensitive, flammable, and explosive property, but it is also necessary to know special precautions regarding its transportation. Load operations are difficult processes for LPG tankers. The most complex of these processes is the change of load called grade change. The chapter guides LPG vessels' workers and students in the education process.