International Business Machines Corporation

Air Products and Chemicals, Inc.

Baker Hughes Oilfield Operations LLC

Liang Yu

Jing Lv

Jie Zhang

Yong Yang

Yan Mei Zhang

Chang Lei

Lishun Hu

Junli Xue

Xijing Bi

Xuelin Wang

This invention involves with a gasification system, which includes a gasifier, which gasifier comprises a gasification chamber for producing syngas from coal slurry and a quench chamber for cooling the syngas from the gasification chamber. The mentioned gasification system also comprises preheater located in the quench chamber for utilizing heat in the quench chamber to preheat the coal slurry before the coal slurry enters the gasification chamber. Wherein, the preheater comprises a pipe device defining a passage for the coal slurry to pass through, the passage in communication with the gasification chamber and upstream of the gasification chamber in a flow direction of the coal slurry. This invention also involves with a preheater used in the mentioned gasification system and the gasification method of the mentioned gasification device.

Coal slurry preheater and coal gasification system and method using the same

An indication to activate a first floating point area is received. An indication to select a first floating point area on a touch screen of a device is received. The first floating point is associated with a first section of content on the touch screen of the device. An indication to activate a second floating point area is received. An indication to select a second floating point area on a touch screen of a device is received. The second floating point is associated with a second section of content on the touch screen of the device.

Selecting areas of content on a touch screen

Growing community of inventors

Shanghai, China

Liang Yu