@inproceedings{CTT100813364,
  author = {Shuo Cheng and Yuhua Wang and Zhangzhao Ma and Yu Zhai and AiMin Li and Kunio Yoshikawa},
  title = {Pyrolysis of Oil Sludge with Oil Sludge Ash catalyst a Stirred Tank Reactor},
  booktitle = {},
  year = 2015,
}

@inproceedings{CTT100813371,
  author = {Cheng Shuo and Yoshikawa Kunio and Zhai Yu},
  title = {A Study of Oil Recovery from Oil Sludge Employing a Pyrolysis Process with Catalyst of Oil sludge ash},
  booktitle = {},
  year = 2014,
}