ACARP ACARP ACARP ACARP
Mine Site Greenhouse Gas Mitigation

Selective Absorption of Methane by Ionic Liquids (SAMIL) - Phase 2 Demonstration in a Packed Bed Reactor

Mine Site Greenhouse Gas Mitigation » Mine Site Greenhouse Gas Mitigation

Published: August 20Project Number: C28076

Get ReportAuthor: Behdad Moghtaderi, Andrew Maddocks, Omid Mowla, Priscilla Tremain, Anna Bishop | University of Newcastle

An alternative approach to high temperature oxidation of ventilation air methane (VAM) is the separation of VAM from the ventilation air. A separation process allows for the capture of VAM at temperatures significantly less than the autoignition temperature of lean air-methane mixtures. Hence, existing safety concerns with connecting high temperature abatement processes to ventilation systems can be eliminated.  Separation processes investigated in the past included adsorption, absorption and membrane techniques.  This project, which is a continuation of project C27008, focuses on the absorption of methane in ionic liquids using a rotating packed bed reactor. This project was a key step in the transition from the fundamental chemistry investigations already completed in project C27008, to the demonstration of the process in an appropriate reactor.

The primary aim of the project was to demonstrate the absorption of VAM in ionic liquids using a rotating packed bed, focussing on:

  • Understanding the influence of operating parameters such as temperature, ionic liquid viscosity, residence time, bed surface area, and rotational speed;
  • Determining mass transfer models for the absorption of gas in ionic liquids in rotating packed beds Determining the absorption and desorption rates of methane in ionic liquids;
  • Evaluating the performance of ionic liquids and conducting a preliminary feasibility assessment of absorption in packed beds;

To demonstrate the absorption of methane in a rotating packed bed, the following tasks were undertaken:

  • Design and construction of a rotating packed bed experimental apparatus for methane absorption.
  • An experimental program which investigated the influence of operating parameters such as temperature, ionic liquid viscosity, residence time, bed surface area, and rotational speed on the absorption of methane.
  • Calculation of mass transfer rates for the absorption of methane in ionic liquids.
  • Desorption experiments to determine the concentration of the absorbed gas.

The key findings for the project were:

  • Overall assessment: from a technical standpoint a rotating packed bed is a suitable technology for the absorption of VAM using ionic liquids
  • Methane was selectively absorbed from air at low concentrations and low pressures
  • Methane absorption increased with increasing reactor volume
  • Methane absorption was significantly influenced by the rotating packed bed parameters of packing material and rotational speed

Assessing the applicability of rotating packed beds to large scale VAM abatement requires the process to be undertaken on a continuous absorption/desorption basis. This would allow for the derivation of scaleup rules and an analysis of the levelised cost of abatement to be completed. Comparisons with traditional packed bed reactors operating at similar conditions would be beneficial.

Underground

Health and safety, productivity and environment initiatives.

Underground

Open Cut

Safety, productivity and the right to operate are priorities for open cut mine research.

Recently Completed Projects

C19024Establishing Ecologically Sustainable Mine Water Release Criteria In Seasonally Flowing Streams

Extreme rainfall conditions in the Fitzroy Catchment over an approxi...

C25030Coal Mine Open Pit Final Void Closure And Relinquishment - Addressing Uncertainty In Coal Mine Environmental Planning

This report addresses uncertainties faced by coal mine operators whe...

C27046Estimation Of True Deformation Vector From Slope Radar Monitoring

Slope deformation radar monitors are now widely used in open cut coa...

Open Cut

Coal Preparation

Maximising throughput and yield while minimising costs and emissions.

Recently Completed Projects

C27004Improving Coal Flotation With Oscillatory Air Supply

This report provides detailed information on coal flotation with os...

C25018Improving Solids Recovery And Moisture Reduction In Ultrafine Coal Dewatering

This report provides detailed information on fine coal dewatering in...

C27028Lab Froth Flotation Testing Guide With Coal Quality

Correct outcomes from laboratory froth flotation testing in coal bor...

Coal Preparation

Technical Market Support

Market acceptance and emphasising the advantages of Australian coals.

Recently Completed Projects

C26039Nanoporosity In Cokes: Their Origin, Control And Influence On CO2 Reactivity

This project using the outcomes of previous project C24060, examine...

C28063A Comprehensive Technical Review Of High-Efficiency Low-Emission (HELE) Pulverised Coal Combustion Technologies For Power Generation

Research and development has been undertaken worldwide to realise co...

C28064Carbon Structure Transformation During Coking Of Australian Coking Coals: Better Understanding The Coke Formation

Carbon structures of coke that are formed during the plastic layer a...

Technical Market Support

Mine Site Greenhouse Gas Mitigation

Mitigating greenhouse gas emissions from the production of coal.

Recently Completed Projects

C28076Selective Absorption Of Methane By Ionic Liquids (SAMIL) - Phase 2 Demonstration In A Packed Bed Reactor

An alternative approach to high temperature oxidation of ventilation...

C26004CFD Modelling Of Reverse Thermal Oxidisers For VAM Abatement - CFD Modelling Of Fixed-Bed RTO Devices

The project is part of a larger multi‐phase program of study a...

C27058Technological Assessment Of A Recycle Reactor For VAM Abatement

Underground coal mining emits high volumes of methane, diluted in ve...

Mine Site Greenhouse Gas Mitigation

Low Emission Coal Use

Step-change technologies aimed at reducing greenhouse gas emissions.

Recently Completed Projects

C17060BGasification Of Australian Coals

Four Australian coals were trialled in the Siemens 5 MWth pilot scale ga...

C17060AOxyfuel Technology For Carbon Capture And Storage Critical Clean Coal Technology - Interim Support

The status of oxy-fuel technology for first-generation plant is indicate...

C18007Review Of Underground Coal Gasification

This report consists of a broad review of underground coal gasification,...

Low Emission Coal Use

Mining And The Community

The relationship between mines and the local community.

Recently Completed Projects

C16027Assessing Housing And Labour Market Impacts Of Mining Developments In Bowen Basin Communities

The focus of this ACARP-funded project has been to identify a number...

C22029Understanding And Managing Cumulative Impacts Of Coal Mining And Other Land Uses In Regions With Diversified Economies

The coal industry operates in the context of competing land-uses that sh...

C23016Approval And Planning Assessment Of Black Coal Mines In NSW And Qld: A Review Of Economic Assessment Techniques

This reports on issues surrounding economic assessment and analysis ...

Mining And The Community

NERDDC

National Energy Research,Development & Demonstration Council (NERDDC) reports - pre 1992.

Recently Completed Projects

1609-C1609Self Heating of Spoil Piles from Open Cut Coal Mines

Self Heating of Spoil Piles from Open Cut Coal Mines

1301-C1301Stress Control Methods for Optimised Development...

Stress Control Methods for Optimised Development and Extraction Operations

0033-C1356Commissioned Report: Australian Thermal Coals...

Commissioned Report: Australian Thermal Coals - An Industry Handbook

NERDDC