CO₂ PROCESSING/SEQUESTRATION SERVICE CAPABILITIES

-Conceptual design of novel CO₂ processing/sequestration approaches

-Definition and technical/economic evaluation of multiple process configurations

-Process simulation and design of CO₂ unit operations

-Absorption of CO₂ from natural gas, flue gas, or other process gas streams

-Dehydration of CO₂ at moderate pressures with TEG

-Dehydration of supercritical CO₂ with glycerol

-H₂S removal from CO₂

-CO₂ liquefaction via compact and conventional heat exchangers

-Pipeline flow analysis (e.g., two-phase supercritical flow in hilly terrain)

-CO₂ production well flowlines

-Retrograde condensation of water in CO₂ pipelines

-Preparation of equipment specifications

-Flammability assessments for CO₂/methane mixtures for process hazard analyses

-Plant start-up and troubleshooting services

-Debottlenecking studies

-Materials selection

Examples of Experience Relevant to CO₂ Processing and/or Sequestration:

-Debottlenecking study at a 150 MMscfd supercritical CO₂ dehydration facility - client desired to increase throughput of facility by ~75% over historical levels.  Through careful modeling and consultation with an outside expert with specific supercritical CO₂ experience, Trimeric staff proved that the expansion could be accomplished by replacing existing trays with structured packing, and making other minor modifications to certain pieces of the existing plant.  Net cost of the plant expansion using this route was 1/3 that of client’s other option, building a new facility.  The structured packing and other modifications were installed and successfully started up.  This client saved over $1 million.

-Engineering feasibility study – Conceptual design and cost estimates for two CO₂ processing options: 1) compress, cool, and dehydrate CO₂ with glycerol under supercritical conditions, and 2) dehydrate CO₂ with TEG under subcritical conditions, chill, condense, and then pump the liquid CO₂ into the sales pipeline.

-CO₂ delivery pipeline capacity evaluation - Modeled 80-mile CO₂ delivery pipeline to predict maximum pipeline capacity under various feed conditions with multiple customer draw-off points along the line.

-CO₂ gathering system network evaluation – Modeled CO₂ gathering system network to identify bottlenecks and options for increasing capacity.  Problem required simulating supercritical CO₂/water two-phase flow using specialized pipeline simulation software.

-Equipment selection for CO₂ liquefaction unit.  Evaluated several different conventional and compact heat exchanger designs and prepared equipment specifications for 18 MMscfd CO₂ condenser.