TY JOUR TI Modernization of equipment for transportation of polypropylene KW pneumatic transport KW polypropylene KW throttle effect KW blowers KW polypropylene (powder) JO Oil and gas technologies and environmental safety AU Memedeykina, N.P. AU Telichkina, E.. AU Klimov, N.. PY 2023 IS PB Astrakhan State Technical University