Huawei Technologies Co., Limited

China Petroleum & Chemical Corporation

Research Institute of Petroleum Processing, Sinopec

Sun-central (shanghai) Marketing and Service Co., Ltd

Lingping Wang

Jianghua Liu

Junren Chang

Shulan Feng

Lei Han

Lishun Dai

Zhihai Hu

Chuanfeng Niu

Yong Han

Wei Ye

Tan Chen

Zhicai Shao

Qiang Fang

Shasha Li

Wenjing Xu

Zhonghuo Deng

Fa Liu

Jinshan Xiao

The present disclosure relates to the field of communication technologies, and discloses a communication method and apparatus. The method includes: A terminal device receives an identifier of a filtering protocol version from an access network device, and then sends first capability information of the terminal device to the access network device based on the filtering protocol version. In this method, the terminal device may report capability information based on the filtering protocol version sent by the access network device. Compared with a manner in which the terminal device directly reports the capability information, this method can effectively reduce a communication problem caused by mismatch between a protocol version supported by the terminal device and a protocol version supported by the access network device and/or a protocol version supported by a core network device.

Communication method and apparatus

The present invention provides an oil slurry filter, a filter unit including the oil slurry filter, a multiple-filter system including the oil slurry filter, and a multiple-stage filter system including the oil slurry filter. Due to the use of the filter component of flexible texture in the oil slurry filter of the present invention, the problems that the filter material is easily blocked by high-viscosity colloidal impurities, the regeneration efficiency of the filter is poor and the filtration efficiency is low are solved, and it is possible to make the backwash treatment of the filter residue more convenient and improve the regeneration efficiency of the filter. The present invention also provides a filtering process using the oil slurry filter to ensure long-term stable operation of the oil slurry filtering process.

Oil slurry filter, oil slurry filter unit and oil slurry filter system containing the same, and oil slurry filtering process

Growing community of inventors

Shanghai, China

Lingping Wang