公开(公告)号：US20070261991A1

公开(公告)日：2007-11-15

申请号：US11432260

申请日：2006-05-11

申请人： David Beattie ,  Richard Stell ,  James McCoy ,  Bryan McVicker ,  Paul Keusenkothen ,  Alok Srivastava ,  David Bleckinger

发明人： David Beattie ,  Richard Stell ,  James McCoy ,  Bryan McVicker ,  Paul Keusenkothen ,  Alok Srivastava ,  David Bleckinger

IPC分类号： C10G9/00 ,  C10G15/00

CPC分类号： C10G9/00 ,  C10G9/20

摘要： The invention relates to a method for processing asphaltene-containing feed to a pyrolysis furnace by raising the final boiling point of the feed/steam mixture to the pyrolysis furnace to ensure fouling occurs lower in the convection section where the mixture of air and steam can burn off fouling deposits during decoking operations. The final boiling point of the feed stream is increased by adding a heavy essentially asphaltene-free high boiling point hydrocarbon to the feed stream before the feed stream enters the convection section of the pyrolysis furnace, whereby said fouling occurs lower in the convection section.

摘要翻译： 本发明涉及通过将进料/蒸汽混合物的最终沸点提高到热解炉来将沥青质的进料加工成热解炉的方法，以确保在空气和蒸汽的混合物可以燃烧的对流部分中发生较低的结垢 在除焦作业期间污染沉积物。 在进料流进入热解炉的对流段之前，通过向进料流中加入重质基本上不含沥青质的高沸点烃来提高进料流的最终沸点，由此在对流段中发生较低的污垢。