| 9175229 |
Method and apparatus for quenching a hot gaseous stream |
A. Haluk Bilgic, Danny Yuk Kwan Ngan |
2015-11-03 |
| 8083932 |
Process for producing lower olefins from hydrocarbon feedstock utilizing partial vaporization and separately controlled sets of pyrolysis coils |
Robert Lawrence Blackbourn, Danny Yuk Kwan Ngan |
2011-12-27 |
| 8070938 |
Apparatus and method for superheated vapor contacting and vaporization of feedstocks containing high boiling point and unvaporizable foulants in an olefins furnace |
Louis Edward Stein, Danny Yuk Kwan Ngan, Karl Gregory Anderson, Raul Jasso Garcia, Sr., Richard Rodriguez |
2011-12-06 |
| 7862651 |
Apparatus and method for superheated vapor contacting and vaporization of feedstocks containing high boiling point and unvaporizable foulants in an olefins furnace |
Louis Edward Stein, Danny Yuk Kwan Ngan, Karl Gregory Anderson, Raul Jasso Garcia, Sr., Richard Rodriguez |
2011-01-04 |
| 7829752 |
Process for producing lower olefins |
Danny Yuk Kwan Ngan |
2010-11-09 |
| 7718839 |
Process for producing lower olefins from heavy hydrocarbon feedstock utilizing two vapor/liquid separators |
Danny Yuk Kwan Ngan |
2010-05-18 |
| 6632351 |
Thermal cracking of crude oil and crude oil fractions containing pitch in an ethylene furnace |
Daniel Yuk-Kwan Ngan, Pui-Yuen Jeffrey Chan |
2003-10-14 |
