Zheng H Liu

US Patent:

20210300766, Sep 30, 2021

Filed:

Jul 17, 2019

Appl. No.:

17/259362

Inventors:

- BERGEN OP ZOOM, NL
Zheng Liu - Sugar Land TX, US
Tian Gu - Richmond TX, US
Debashis Chakraborty - Missouri City TX, US
Sanjeev Deshpande - Sugar Lane TX, US

International Classification:

C01B 32/80
C01B 32/40
B01J 20/20
B01J 20/08
B01J 20/28
C10K 1/00
C10K 1/32
B01D 53/04
B01D 53/82
B01D 53/52

Abstract:

Disclosed are methods and systems for desulfurization of CO-rich streams. A method can include contacting a CO-rich gas stream with activated carbon and/or contacting the CO-rich gas stream with a zinc-oxide sorbent material at a temperature of 0 to 50 C. to remove at least a portion of the sulfur-containing compounds present in the stream.

US Patent:

20190323098, Oct 24, 2019

Filed:

Dec 14, 2017

Appl. No.:

16/471115

Inventors:

- Bergen op Zoom, NL
Zheng LIU - Sugar Land TX, US

International Classification:

C21B 13/00
B01D 53/22
B01D 53/047

Abstract:

Systems and processes to produce direct reduced iron with a gaseous reducing stream having less than 10 mol. % nitrogen (N) and greater than 80 mol. % methane (CH) are described. A process includes separating Nfrom a gaseous stream to produce the reducing stream and contacting the reducing stream with iron ore under conditions sufficient to form direct-reduced iron. The reduction in the Ncontent of the reducing stream improves the overall steel producing capacity by at least 2%.