Search

Shwetha Ramkumar

from Cypress, TX
Age ~41
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Also known as:
Shwetha R
Phone and address:
12803 Wildwood Bend Ln, Cypress, TX 77433
Connected to:
Aarthi Ramkumar, 49Barathram Ramkumar, 40Mala Ramkumar, 71Ramakrishnan Ramkumar, 52Vivek R Ramkumar, 48Salina N Ramlakhan, 43Tricia A Ramlakhan, 55Ashley H Ramlal, 28Amanda Ramlall, 34Choondai A Ramlall, 46

Shwetha Ramkumar Phones & Addresses

  • 12803 Wildwood Bend Ln, Cypress, TX 77433
  • Houston, TX
  • Columbus, OH

Work

Company: Exxonmobil Sep 2019 Position: Technology development supervisor

Education

Degree: Doctorates, Doctor of Philosophy School / High School: The Ohio State University 2005 to 2010 Specialities: Chemical Engineering, Philosophy

Industries

Oil & Energy

Resumes

Resumes

Shwetha Ramkumar Photo 1

Technology Development Supervisor

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Location:
Houston, TX
Industry:
Oil & Energy
Work:
Exxonmobil
Technology Development Supervisor
Exxonmobil Feb 2018 - Aug 2019
Fractionation and Separation Team Lead
Exxonmobil Sep 2010 - Feb 2018
Engineering Associate
The Ohio State University Sep 2005 - Jun 2010
Research Associate
Education:
The Ohio State University 2005 - 2010
Doctorates, Doctor of Philosophy, Chemical Engineering, Philosophy

Publications

Us Patents

Calcium Looping Process For High Purity Hydrogen Production Integrated With Capture Of Carbon Dioxide, Sulfur And Halides

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US Patent:
8496909, Jul 30, 2013
Filed:
Oct 13, 2009
Appl. No.:
13/123746
Inventors:
Shwetha Ramkumar - Columbus OH, US
Assignee:
The Ohio State University Research Foundation - Columbus OH
International Classification:
C01B 3/16
C01B 3/12
US Classification:
423656, 423655
Abstract:
A process for producing hydrogen comprising the steps of: (i) gasifying a fuel into a raw synthesis gas comprising CO, hydrogen, steam, sulfur and halide contaminants in the form of HS, COS, and HX, wherein X is a halide; (ii) passing the raw synthesis gas through a water gas shift reactor (WGSR) into which CaO and steam are injected, the CaO reacting with the shifted gas to remove CO, sulfur and halides in a solid-phase calcium-containing product comprising CaCO, CaS and CaX; (iii) separating the solid-phase calcium-containing product from an enriched gaseous hydrogen product; and (iv) regenerating the CaO by calcining the solid-phase calcium-containing product at a condition selected from the group consisting of: in the presence of steam, in the presence of CO, in the presence of synthesis gas, in the presence of Hand O, under partial vacuum, and combinations thereof.

Carbonation Calcination Reaction Process For Cocapture Using A Highly Regenerable Sorbent

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US Patent:
8512661, Aug 20, 2013
Filed:
May 19, 2011
Appl. No.:
13/111794
Inventors:
Shwetha Ramkumar - Columbus OH, US
William Wang - Hilliard OH, US
Robert Statnick - Cornelius NC, US
Assignee:
The Ohio State University Research Foundation - Columbus OH
International Classification:
B01D 53/50
B01D 53/62
B01D 53/74
B01D 53/81
US Classification:
423230, 4232421, 422129, 422162, 422187, 422619, 422630, 422634, 422641
Abstract:
A process for the efficient capture of COand sulfur from combustion flue gas streams and gasification based fuel gas mixtures using regenerable and recyclable calcium based sorbents. The regeneration of the calcium sorbent is accomplished by hydrating the sorbent at high temperatures of about 600 C. and a pressure higher than 6 bars to lower the parasitic energy consumption.

High Purity, High Pressure Hydrogen Production With In-Situ Co2 And Sulfur Capture In A Single Stage Reactor

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US Patent:
20090263316, Oct 22, 2009
Filed:
Mar 24, 2009
Appl. No.:
12/409843
Inventors:
Mahesh V. Iyer - Houston TX, US
Shwetha Ramkumar - Columbus OH, US
Assignee:
The Ohio State University - Columbus OH
International Classification:
C01B 3/58
US Classification:
4236583
Abstract:
A process for producing hydrogen, comprising the steps of: (a) gasifying a fuel into a raw synthesis gas comprising CO, hydrogen, steam and sulfur and halide contaminants in the form of HS, COS and HX, where X is a halide; (b) passing the raw synthesis gas through a water gas shift reactor (WGSR) into which CaO and steam are injected, the CaO reacting with the shifted gas to remove CO, sulfur and halides in a solid-phase calcium-containing product comprising CaCO, CaS and CaX; (c) separating the solid-phase calcium-containing product from an enriched gaseous hydrogen product; and (d) regenerating the CaO by calcining the solid-phase calcium-containing product at a condition selected from the group consisting of: in the presence of steam, in the presence of CO, in the presence of synthesis gas, in the presence of Hand O, under partial vacuum, and combinations thereof. The CaO may have a surface area of at least 12.0 m2/g and a pore volume of at least 0.015 cm3/g, the CaO having a sorption capacity of at least about 70 grams of CO2 per kilogram of CaO.

Gas Purification Using A Co-Axial Co-Current Contactor

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US Patent:
20210069638, Mar 11, 2021
Filed:
Jul 31, 2020
Appl. No.:
16/944437
Inventors:
- Spring TX, US
Shwetha RAMKUMAR - Cypress TX, US
International Classification:
B01D 53/18
B01D 53/14
B01D 53/52
B01D 53/78
Abstract:
A co-axial co-current contactor (CA-CCC) is described herein. The CA-CCC includes an outer annular support ring and an inner annular support ring configured to maintain the CA-CCC within an outer pipe and an inner pipe, respectively. The CA-CCC includes rich liquid flow channels located between the outer annular support ring and the inner annular support ring that are configured to allow a rich liquid stream to flow through the CA-CCC, and a central gas entry cone and gas flow channels configured to allow a gas stream to flow through the CA-CCC. The CA-CCC further includes radial blades configured to secure the central gas entry cone to the inner annular support ring and allow a lean liquid stream to flow into the central gas entry cone and the gas flow channels. The CA-CCC provides for efficient incorporation of liquid droplets formed from the lean liquid stream into the gas stream.

Integration Of Cold Solvent And Acid Gas Removal

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US Patent:
20190054415, Feb 21, 2019
Filed:
Aug 13, 2018
Appl. No.:
16/102278
Inventors:
David W. Maher - Spring TX, US
Shwetha Ramkumar - Cypress TX, US
P. Scott Northrop - The Woodlands TX, US
Robert D. Denton - Bellaire TX, US
International Classification:
B01D 53/14
B01D 61/24
B01D 11/04
Abstract:
A method of separating impurities from a natural gas stream. COand HS are separated from the natural gas stream in a membrane separation system, thereby creating a partially-treated gas stream and a permeate gas stream, both of which are at a lower temperature than the natural gas stream. The partially-treated gas stream is contacted with a first lean solvent stream in a first contactor to separate HS from the partially-treated gas stream, thereby producing a first rich solvent stream and a fully-treated gas stream. The permeate gas stream is contacted with a second lean solvent stream in a second contactor to separate HS therefrom to produce a second rich solvent stream and a COgas stream. HS and COare removed from the first and second rich solvent streams, thereby producing the first and second lean solvent streams.

Integration Of Cold Solvent And Acid Gas Removal

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US Patent:
20190054416, Feb 21, 2019
Filed:
Aug 13, 2018
Appl. No.:
16/102297
Inventors:
David W. Maher - Spring TX, US
Shwetha Ramkumar - Cypress TX, US
P. Scott Northrop - The Woodlands TX, US
Robert D. Denton - Bellaire TX, US
International Classification:
B01D 53/14
B01D 61/24
Abstract:
A method of separating impurities from a natural gas stream. The natural gas stream is cooled through heat exchange with one or more process streams to produce a chilled gas stream, which is contacted with a lean solvent stream in a contactor to separate hydrogen sulfide (HS) from the chilled gas stream, thereby producing a rich solvent stream and a partially-treated gas stream. Carbon dioxide (CO) and HS are separated from the partially-treated gas stream in a membrane separation system, thereby creating a fully-treated gas stream and a permeate gas stream, the permeate gas stream being comprised primarily of HS and CO, and the fully-treated gas stream being comprised primarily of natural gas. The fully-treated gas stream and the permeate gas stream are at a lower temperature than the partially-treated gas stream. The fully-treated gas stream and the permeate gas stream comprise the one or more process streams.

Fractionation System Using Compact Co-Current Contacting Systems

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US Patent:
20180361307, Dec 20, 2018
Filed:
Apr 27, 2018
Appl. No.:
15/964866
Inventors:
Norman K. Yeh - Shenandoah TX, US
Edward J. Grave - Montgomery TX, US
Shwetha Ramkumar - Cypress TX, US
Juan C. Juarez - Shenandoah TX, US
International Classification:
B01D 53/14
B01D 53/18
C10L 3/10
Abstract:
A fractionation system for removing heavy hydrocarbons in a gas stream. A stripping section receives a predominantly liquid phase of a feed gas stream. First and second co-current contacting systems are located in-line within a pipe. The first co-current contacting system receives a predominantly vapor phase of the feed gas stream. Each co-current contacting system includes a co-current contactor and a separation system. Each co-current contactor includes a droplet generator and a mass transfer section. The droplet generator generates droplets from a liquid and disperses the droplets into a gas stream. The mass transfer section provides a mixed, two-phase flow having a vapor phase and a liquid phase. The separation system separates the vapor phase from the liquid phase.

Fractionation System Using Bundled Compact Co-Current Contacting Systems

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US Patent:
20180361309, Dec 20, 2018
Filed:
Apr 10, 2018
Appl. No.:
15/949613
Inventors:
Norman K. Yeh - Shenandoah TX, US
Edward J. Grave - Montgomery TX, US
Shwetha Ramkumar - Cypress TX, US
Juan C. Juarez - Shenandoah TX, US
International Classification:
B01D 53/18
B01D 53/14
B01D 45/14
C10G 5/00
Abstract:
A fractionation system for removing heavy hydrocarbons in a gas stream. A stripping section receives a predominantly liquid phase of the feed gas stream. A co-current contacting system receives a predominantly vapor phase of the feed gas stream. The co-current contacting system includes a compact contacting bundle disposed within a vessel and including a plurality of substantially parallel contacting units, each of the plurality of contacting units having a droplet generator, a mass transfer section, and a separation system. Each droplet generator generates droplets from a liquid disperses the droplets into a gas stream. Each mass transfer section provides a mixed, two-phase flow having a vapor phase and a liquid phase. Each separation system separates the vapor phase from the liquid phase such that the concentration of heavy hydrocarbons in the vapor phase is lower than in the liquid phase.
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Shwetha Ramkumar from Cypress, TX, age ~41 Get Report