发明申请
US20150174565A1 ZEOLITE CATALYSTS, METHODS FOR PRODUCING ZEOLITE CATALYSTS, AND METHODS FOR PRODUCING LOWER OLEFINS
有权
沸石催化剂,生产沸石催化剂的方法以及生产低烯烃的方法
- 专利标题: ZEOLITE CATALYSTS, METHODS FOR PRODUCING ZEOLITE CATALYSTS, AND METHODS FOR PRODUCING LOWER OLEFINS
- 专利标题(中): 沸石催化剂,生产沸石催化剂的方法以及生产低烯烃的方法
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申请号: US14416998申请日: 2013-06-07
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公开(公告)号: US20150174565A1公开(公告)日: 2015-06-25
- 发明人: Shinya Hodoshima , Fuyuki Yagi , Azusa Motomiya , Shuhei Wakamatsu , Sachio Asaoka
- 申请人: CHIYODA CORPORATION
- 申请人地址: JP Yokohama-shi, Kanagawa
- 专利权人: CHIYODA CORPORATION
- 当前专利权人: CHIYODA CORPORATION
- 当前专利权人地址: JP Yokohama-shi, Kanagawa
- 优先权: JP2012-165754 20120726
- 国际申请: PCT/JP2013/065811 WO 20130607
- 主分类号: B01J29/88
- IPC分类号: B01J29/88 ; C07C4/06 ; C01B39/46 ; C01B39/06 ; B01J37/00 ; B01J37/10
摘要:
Provided are zeolite catalysts that allow reactions to proceed at temperatures as low as possible when lower olefins are produced from hydrocarbon feedstocks with low boiling points such as light naphtha, make it possible to make propylene yield higher than ethylene yield in the production of lower olefins, and have long lifetime.The zeolite catalysts are used in the production of lower olefins from hydrocarbon feedstocks with low boiling points such as light naphtha. The zeolite catalysts are MFI-type crystalline aluminosilicates containing iron atoms and have molar ratios of iron atoms to total moles of iron atoms and aluminum atoms in the range from 0.4 to 0.7. The use of the zeolite catalysts make it possible to increase propylene yield, to lower reaction temperatures, and to extend catalyst lifetime.