TY JOUR TI MODERN METHODS OF INTENSIFICATION of VISBREAKING AND THEIR CLASSIFICATION KW hydrocarbon raw materials KW deep processing KW visbreaking KW intensification KW classification KW technological methods KW construction of external reactor KW chemical methods KW physical methods JO Vestnik of Astrakhan State Technical University AU Nurakhmedova, A.. AU Ramazanova, A.. AU Savenkova, I.. AU Tarakanov, G.. PY 2016 IS 2016 PB Astrakhan State Technical University