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    • 9. 发明授权
    • Process and draft control system for use in cracking a heavy hydrocarbon feedstock in a pyrolysis furnace
    • 用于裂解热解炉中重质烃原料的工艺和牵伸控制系统
    • US07351872B2
    • 2008-04-01
    • US10851495
    • 2004-05-21
    • Richard C. StellSubramanian AnnamalaiJames M. Frye
    • Richard C. StellSubramanian AnnamalaiJames M. Frye
    • C07C4/02C10G9/36
    • C10G9/00C10G9/20C10G9/206
    • A process and control system for cracking a heavy hydrocarbon feedstock containing non-volatile hydrocarbons comprising heating the heavy hydrocarbon feedstock, mixing the heated heavy hydrocarbon feedstock with a dilution steam stream to form a mixture stream having a vapor phase and a liquid phase, separating the vapor phase from the liquid phase in a separation vessel, and cracking the vapor phase in the furnace, wherein the furnace draft is continuously measured and periodically adjusted to control the temperature of the stream entering the vapor/liquid separator and thus controlling the ratio of vapor to liquid separated in the separation vessel; and wherein in a preferred embodiment the means for adjusting the draft comprises varying the speed of at least one furnace fan, possibly in combination with adjusting the position of the furnace fan damper(s) or the furnace burner dampers(s).
    • 一种用于裂化含有非挥发性烃的重质烃原料的方法和控制系统,包括加热重质烃原料,将加热的重质烃原料与稀释蒸汽流混合以形成具有气相和液相的混合物流,将 在分离容器中的液相的气相,并且在炉中裂化气相,其中连续测量并周期性地调节炉汲取气,以控制进入蒸汽/液体分离器的流的温度,从而控制蒸汽/ 在分离容器中分离液体; 并且其中在优选实施例中,用于调节通风的装置包括改变至少一个炉风扇的速度,可能与调节炉风扇风门或炉燃烧器风门的位置相结合。