Removal of acid gases from a gas stream, with CO2 capture and sequestration

PS Northrop, RB Anderson - US Patent 9,149,761, 2015 - Google Patents
A gas processing facility and method for processing a hydrocarbon gas stream comprising
sulfurous components and carbon dioxide. The gas processing facility includes an acid gas …

Cryogenic system for removing acid gases from a hydrocarbon gas stream, and method of removing acid gases

PS Northrop, BT Kelley, CJ Mart - US Patent 9,423,174, 2016 - Google Patents
A system for removing acid gases from a raw gas stream the system includes a cryogenic
distillation tower. The tower receives and separates the raw gas stream into an overhead …

Separating carbon dioxide and ethane from a mixed stream

RH Oelfke - US Patent 9,964,352, 2018 - Google Patents
Embodiments described herein provide methods and systems for separating a mixed ethane
and CO 2. A method described includes generating a liquid stream including ethane and CO …

Systems and methods for using cold liquid to remove solidifiable gas components from process gas streams

RD Kaminsky, M Minta - US Patent 10,408,534, 2019 - Google Patents
Abstract Systems and methods are described for re-moving solidifiable gas from a process
gas stream by direct contact with a cold liquid. The process gas stream includes at least gas …

Integrated controlled freeze zone (CFZ) tower and dividing wall (DWC) for enhanced hydrocarbon recovery

V Singh, EJ Grave, PS Northrop… - US Patent 8,312,738, 2012 - Google Patents
The present invention relates to methods and apparatuses for the operation of a distillation
tower containing a controlled freezing zone and at least one distillation section. The process …

Cryogenic systems for removing acid gases from a hydrocarbon gas stream using co-current separation devices

PS Northrop - US Patent 9,829,246, 2017 - Google Patents
A system for removing acid gases from a raw gas stream is provided. The system includes a
cryogenic distillation column. The cryogenic distillation column receives a dehydrated and …

Process for removing gaseous contaminants from a feed gas stream comprising methane and gaseous contaminants

D Andrian, R Van Der Vaart - US Patent App. 12/614,027, 2010 - Google Patents
It has now been found that in an integrated process for removing gaseous contaminants
from gas streams that contain relatively large amount of gaseous contaminants the removal …

Process and apparatus for removal of sour species from a natural gas stream

A Hart, R Amin - US Patent App. 11/992,068, 2010 - Google Patents
A process for removal of sour species from a dehydrated natural gas feed stream is
provided. The dehydrated natural gas feed stream is cooled to conditions where a slurry of …

Contacting a gas stream with a liquid stream

EJ Grave, JT Cullinane, AJAM Hendriks… - US Patent …, 2018 - Google Patents
A co-current contacting system is described herein. The co-current contacting system
includes a co-current contactor located in-line within a pipe. The co-current contactor …

Separating impurities from a fluid stream using multiple co-current contactors

EJ Grave, NK Yeh, SA Freeman - US Patent 10,300,429, 2019 - Google Patents
A method for decontaminating a contaminated fluid stream, comprising receiving the
contaminated fluid stream, distributing the contaminated fluid stream substantially equally …