Reference Manual. The reference manual contains calculations of the main processes and apparatus of process units of gas and oil refineries for cleaning, drying and separation of hydrocarbon gases (oil and natural). The given examples and reference apparatus comply with the requirements of design and verification calculations of processes and apparatus. The manual is intended for engineering and technical workers of gas and oil refineries and relevant design organizations. As a manual for course and diploma design, it can be useful for students of oil universities and faculties.