working advanced thermal cracking technology

Technology

Working Technology

Standard Gas developed a commercial scale plant, fully permitted and licensed by the Environmental Agency, producing syngas used to generate electricity through a reciprocating engine from a wide range of carbon based waste feedstock.

The technology was assessed by the UK Environment Agency and achieved an End of Waste Certification on the gas, the only advanced thermal treatment technology to succeed in completing this rigorous assessment.

Process Overview

The process comprises essentially seven stages

  • Feed delivery
  • Primary pyrolysis
  • Secondary gas cracking
  • Gas scrubbing and cooling
  • Carbon char collection and cooling
  • Heat recovery
  • Gas storage and/or compression
Waste to Gas

SG100

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Reciprocating Engine at Huntingdon

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Early sample gas analysis at Huntingdon

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Flaring gas at Huntingdon during testing; exceptional pure smoke free flare

Patents

All the individual stages are technically mature. It is however an entirely innovative process, not the ‘creation of the new’ but the re-arrangement of the old in a new and different way, under the protection of six patents, which provide extensive IP security for the process.

Key technological benefits of a Standard Gas plant

Technology Benefits

  • 9 week manufacture, rapid on-site assembly

  • Low comparative CAPEX cost

  • Low comparative OPEX cost

  • Small footprint (250 ㎡ ); location flexibility

  • High energy conversion efficiency and low parasitic energy load

  • High flexibility in waste types accepted

  • Conversion of low priced or negative value feedstock into valuable products such as synthetic gas, used to produce power, heat and potentially fuels, chemicals and molecular feedstock for new products


  • Diverting non-recyclable waste from landfill or incineration

  • Processes non-recyclable plastics

  • Replacing fossil fuel usage with reduction in CO2 emissions

  • Re-using redundant buildings

  • Reducing lorry miles – decentralised waste processing & energy production

  • Low environmental impact: Small footprint and zero emissions other than combustion of synthetic gas; no incineration

  • Our syngas has been certified 'End of Waste' by the Environment Agency in the UK - it is as clean as natural gas

  • Sustainable jobs created – UK manufacturing, plus each plant produces 15-20 new skilled operational jobs

  • Enables realisation of true circularity through conversion of the gas produced from waste into basic molecular chemical feedstocks for new products

  • Green contribution to base load energy requirements

  • Low/no impact on local amenity (odour, noise, dust, landscape)

  • Opportunity for public involvement and education

  • Possible opportunity for low cost local heat network

  • Very safe technology operating at low pressure

carbon based waste and feedstock types

Inputs

The technology has converted a large number of different carbon based waste feedstock types. It can operate on blended waste streams from any of the categories below and more

  • RDF – refuse derived fuels
  • SRF – solid recycled fuels
  • Mixed waste wood
  • Auto shredded residue
  • Oily sludge/oily rags
  • Medical waste
  • Tyre crumb
  • High chlorinated plastics
  • Non-recyclable paper & cardboard
  • ABP – Animal By-Products
gas . carbon char . heat

Outputs

Gas

The technology is principally designed to produce a high quality clean synthetic gas or syngas. The composition of this gas is mainly methane, hydrogen and carbon monoxide, with a small percentage of other gases.

The gas can be used to produce: i) electricity through reciprocating engines; ii) conversion to “development” transport fuel under the UK government’s Renewable Transport Fuel Obligation (RTFO) which qualifies for substantial pricing incentives through at least 2032; iii) molecular feedstock for the chemical sector; or iv) or heat as required.

Carbon Char

Once the waste feedstock has been converted there is a residue of ash-free char, richer in carbon that the original feedstock.  This carbon char has a number of applications.

  • Soil conditioner/enhancer
  • Energy rich fuel
  • Carbon black product/ (CBP)
  • Activated carbon for use in air filters, sewage treatment, water purification

Heat

The high grade exhaust heat at 400c + can be used to raise steam to drive a secondary turbine to generate electricity in an integrate combined cycle.

This high grade heat can also be used in industrial/commercial processes. The lower grade heat can be utilized in a district heating system for residential or commercial heating requirements, such as space heating and water heating.

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Reciprocating Engine

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Carbon Char

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Gas flare for industrial processes