石化设备高温耐蚀合金选材.pdf

2 1 10 V ol . 21N o . 10 2000 10 COR ROSI ON P ROT ECT I ON O ctobe 2000 ( 44 8039) , HIGH T EM PERAT URE CORROSION AND M AT ERIAL S SELECT ION IN PET ROCHEM ICAL PLAN T S Rao Xinghe ( Jingmen Pet o chemical Co mplex , Jingmen 448039) Abstract High t empe atu e co osio n oft en occu s in efine ies and pet o chemical plants. T his pape int oduces v a ious ty pes of co o sion including o x ida tio n, sulfu izatio n, ca bu ization, nit idatio n and halo gen co o sion. T he co o sion- esistant alloy s co mmonly used fo efine ies and pet o chemical plants, mat e ials selection c it e ia and ty pica l mat e ia ls fo hig h tempe atu e equipment a e also int o duced. Keywords R efine y Pet ochemical plant High tempe atu e co osio n Co osio n- esist ant alloy M ate ial selection , 1 18C -8Ni 18C -12Ni , , 816 , 650 C C , , 650 C 343 C , , ( 0. 5% 9% ) ( 0. 5% 1%) 1 , - 650 , 2 , 3 C Mo C 10000h 1 , % C Ni Fe Co C Si M n Al 304H 19