Patents by Inventor Mujun Yuan

Mujun Yuan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Ethylene cracking furnace with multi-pass radiant coil
    Patent number: 8900522
    Abstract: The invention relates to an ethylene cracking furnace having a multi-pass radiant coil, comprising at least one radiant section. In the radiant section there are provided with bottom burners and/or sidewall burners, and at least one set of multi-pass radiant coil longitudinally arranged in the radiant section. The multi-pass radiant coil is a four- to ten-pass type radiant coil. At least one tube of the multi-pass radiant coil is arranged to be spatially adjacent to a tube which is not consecutive to said at least one tube. With this arrangement, the thermal radiation influence between tubes with high temperature can be reduced, so that the tubes with low temperature can absorb the radiation heat from the tubes with high temperature. Therefore, the surface temperature of the tubes with high temperature can be reduced, thus extending the lifetime of the radiant coil and the operational cycle of the cracking furnace.
    Type: Grant
    Filed: October 26, 2010
    Date of Patent: December 2, 2014
    Assignees: China Petroleum & Chemical Corporation, SINOPEC Engineering Incorporation, China Petroleum & Chemical Corporation, Beijing Institute of Chemical Industry
    Inventors: Xiou He, Changli Li, Zhaobin Zhang, Jingkun Liu, Mujun Yuan, Cong Zhou, Yuping Guo, Yonghua Zhao, Hainü Shen
  • Ethylene Cracking Furnace With Multi-Pass Radiant Coil
    Publication number: 20120219466
    Abstract: The invention relates to an ethylene cracking furnace having a multi-pass radiant coil, comprising at least one radiant section. In the radiant section there are provided with bottom burners and/or sidewall burners, and at least one set of multi-pass radiant coil longitudinally arranged in the radiant section. The multi-pass radiant coil is a four- to ten-pass type radiant coil. At least one tube of the multi-pass radiant coil is arranged to be spatially adjacent to a tube which is not consecutive to said at least one tube. With this arrangement, the thermal radiation influence between tubes with high temperature can be reduced, so that the tubes with low temperature can absorb the radiation heat from the tubes with high temperature. Therefore, the surface temperature of the tubes with high temperature can be reduced, thus extending the lifetime of the radiant coil and the operational cycle of the cracking furnace.
    Type: Application
    Filed: October 26, 2010
    Publication date: August 30, 2012
    Applicants: China Petroleum & Chemical Corporation, China Petroleum & Chemical Corporation Beijing Research Institute of Chemical Industry, SINOPEC Engineering Incorporation
    Inventors: Xiou He, Changli li, Zhaobin Zhang, Jingkun Liu, Mujun Yuan, Cong Zhou, Yuping Guo, Yonghua Zhao, Hainu Shen