Peking University

Petrochina Company Limited

Beijing Founder Apabi Technology Limited

Sichuan Kelite Oil and Gas Technology Co. Ltd

Xuefeng Yang

Yi Wang

Li Wang

Hua Zhou

Tong Liu

Zhi Tang

Fusen Xiao

Bo Kong

Daqing Tang

Jingyuan Chen

Ying Wan

Banghua Xie

Zhao Ding

Zhijin Pu

Dihong Zhang

Dengsha Yuan

Disclosed are a device and a method for determining the solubility of elemental sulfur in a sulfur-containing gas. The device includes a displacement pump, a first sampler, a high-temperature box, a back-pressure pump, a control valve, an adsorption tank, a low-temperature box, a flow meter and a collection tank. An outlet of the displacement pump is in communication with an inlet of the first sampler; an outlet of the first sampler is in communication with a first inlet of the control valve; a second inlet of the control valve is in communication with an outlet of the back-pressure pump; an outlet of the control valve is in communication with a first opening of the adsorption tank; a second opening of the adsorption tank is in communication with the flow meter; and a third opening of the adsorption tank is in communication with the collection tank.

Device and method for determining solubility of elemental sulfur in sulfur-containing gas

A digital content rights management method and system belongs to the digital content rights management technique field. The method of the invention includes the steps: registering the system, generating the time stamp, verifying the time stamp when the system starts up, acquiring the certificate, verifying the time before accessing the digital content. The system of the invention comprises a device for accessing the digital content and a server, wherein the device for accessing the digital content comprises: a registering module, a time stamp generating module, a time stamp verification module, a certificate of authorization acquiring module, and a time verification module. The method and system have solved the problem that the digital content can still be used beyond the time limit.

Digital content rights management method and system

Growing community of inventors

Beijing, China

Xuefeng Yang