公开(公告)号：US06303842B1

公开(公告)日：2001-10-16

申请号：US09544306

申请日：2000-04-06

申请人： Robert S. Bridges ,  Richard B. Halsey ,  Don H. Powers

发明人： Robert S. Bridges ,  Richard B. Halsey ,  Don H. Powers

IPC分类号： C07C404

CPC分类号： C10G9/14 ,  C10G2400/20

摘要： Olefins may be produced by thermally steam cracking residuum containing a short residuum having a boiling point range greater than 565° C. wherein at least 3 weight percent of the short residuum has a boiling point greater than or equal to 650° C. The residuum has pentane insolubles less than or equal to 1.2, ASTM 893. Further, the weight percent of hydrogen of the residuum is greater than or equal to 12.5. Such feedstocks are produced by hydrotreating, where necessary, a petroleum residuum having pentane insolubles less than 1.0, ASTM 893, until the weight percent of hydrogen of the petroleum residuum is 12.5. Where necessary, the petroleum residuum may be deasphalted prior to subjecting it to hydrotreatment.

摘要翻译： 烯烃可以通过热蒸汽裂解残渣产生，该渣含有沸点范围大于565℃的短残渣，其中至少3重量％的短残渣具有大于或等于650℃的沸点。残渣具有 戊烷不溶物小于或等于1.2，ASTM 893.此外，残渣的氢的重量百分比大于或等于12.5。 这些原料通过加氢处理（必要时）将戊烷不溶物小于1.0的石油残渣加热处理，ASTM 893，直至石油残渣的氢的重量百分数为12.5。 必要时，石油渣可以在进行加氢处理之前脱沥青。