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Environmental solutions

There’s an environmental aspect to every project we execute, whether it’s environmental impact assessment, permitting, a technical study, FEED, EPC or on-going asset support, or remediation, and whether we are talking about environmental protection in design, or environmentally responsible practices in the field, or environmental efficiency.

As well as leading technical expertise across all of our business lines, we have a significant team of environmental experts, with specialists able to advise on every aspect of your project, in areas including: 

  • Environmental, social, and human health impact assessment (ESIA)
  • Environmental risks and liabilities assessment
  • Contaminated sites assessments and their remediation
  • Water management
  • Waste and waste by-products
  • Facility closure, reclamation, and brownfield redevelopment
  • CO2 sequestration.
We also offer leading environmental protection technologies for:

 

<div>Today, we are seeing refineries being squeezed between two opposing trends: tightening environmental regulation and increasing sulphur content in the crudes they process.</div><div>&nbsp;</div><div>For many mid- to large-scale power and industrial facilities, including refineries,<a href="/sectors/power/thermal-power-plants/circulating-fluidized-bed">&nbsp;<strong>circulating fluidised-bed</strong></a> (CFB) scrubbers&nbsp;are growing in popularity for both new and retrofit applications.</div>

<div>Many of our clients face increasingly stringent environmental and fuel product specifications, but cannot afford to sacrifice operability and efficiency to reach those goals. In today’s refineries, the sulphur recovery block needs to be highly reliable to avoid lost profits and to ensure ever-stricter emissions regulations are met. We have a proven technology that enhances this unit’s safety and reliability.</div><div><br /></div><div>We offer a proven, proprietary Claus process technology with important design features to enhance SRU reliability and safety. From revamps to new builds, 80% of our clients are repeat customers who appreciate our responsiveness, and the distinct performance advantages of our units.<br /></div><div><br /></div><div>Our experts are knowledgeable in the design of sulphur recovery unit (SRU) operations, including:<br /><br /></div><div><ul><li>Claus units</li><li>Tail gas treating units</li><li>Tail gas incinerators</li><li>Sulphur storage</li><li>Sulphur degassing</li><li>Sulphur pit vent disposition</li><li>Sour liquid or gas amine absorbers</li><li>Amine regenerators</li><li>Sour water strippers</li><li>Sulphur condensers</li><li>Waste heat boilers</li><li>Hazardous waste incineration</li><li>Natural gas processing</li><li>General refinery unit operations.</li></ul><p><strong><br /><br />Why choose our SRU technology?</strong></p></div><div>Our cost-effective designs are customised to your specific needs<br /><br /></div><div><ul><li>Smaller footprint to reduce capital cost and improve operability and maintenance</li><li>Lower operating temperatures in our proprietary acid gas burner technology extend the operating life of the burner and reduce operating and maintenance cost</li><li><span class="Apple-tab-span" style="white-space: pre;"></span>Improved lifecycle costs through long running units with high on-stream factors</li><li>35 years sulphur technology experience reflected in our designs, to reduce your risk</li><li>Maintain environmental compliance with sulphur recovery efficiencies up to 99.95%</li><li><span class="Apple-tab-span" style="white-space: pre;"></span>Proprietary acid gas burner capable of destroying ammonia up to 25 mole % and providing low level oxygen enrichment up to 28 mole %</li><li><span class="Apple-tab-span" style="white-space: pre;"></span>SO2&nbsp;emissions as low as 10ppmv.</li></ul></div><p><br /></p>

<div>Our clients are interested in finding ways to improve waste management while satisfying environmental regulations and community concerns, and lowering costs. Our leading thermal treatment technology is a practical and cost-effective solution to this challenge.</div><div><br /></div><div>Our advanced thermal treatment technology:<br /><br /></div><div><ul><li>Meets US EPA Maximum Achievable Control Technology (MACT) and other regulatory requirements with the least capital and operating costs</li><li>Maximises online operating time with minimum maintenance and shutdown issues</li><li>Appropriately deals with Mercury removal</li><li>Accepts multiple waste streams</li><li>Mitigates unfavourable public perception and impediments</li><li>Designed for safe and reliable operation.&nbsp;</li></ul></div><div><br /><br />Our technology handles hazardous and toxic waste streams, with the capacity directly to feed reactive waste streams without sending them to storage.</div><div><br /></div><div>Our technology is based on our proven proprietary rotary kiln incinerator, with secondary combustion chamber (SCC). It is the one thermal treatment alternative that can accommodate a very robust range of waste types and feed conditions.</div><br /><br />

<div>We adopt a holistic approach to energy management, which combines the identification and evaluation of a wide range of potential technical options, together with systems and operator interfaces. Our expertise covers not only designing new facilities that are well-integrated and energy efficient, but also working with operators of existing facilities to increase energy efficiency.</div><div><br /></div><div>We use a three-stage Define, Develop and Deliver methodology:</div><div><br /></div><div><div><ol><li><strong>Define</strong><br />We start by developing a complete current energy demand/ consumption picture using a range of data. Then we agree a realistic, achievable objective for the energy management study.</li><li><strong>Develop</strong><br />We use pinch technology to identify the potential for improvement in heat recovery and heat integration, including recovery of low-grade heat streams. We not only look at pay-back period or net present value of each potential solution but really add value by considering the practicalities of plot layout, constructability and the long-term effects on the operability of the facility. We typically suggest a phased approach to implementing improvements, taking into account ease of installation, turnarounds etc.</li><li><strong>Deliver</strong><br />Because we have a strong project execution track record, the options we develop are practical, constructible and based on real cost data, and we know that they are deliverable, safely and successfully.&nbsp;</li></ol></div>We also identify people-related opportunities to reduce energy consumption. Like any machine, the facility, albeit a complex machine, is ‘only as good as the people who operate it’. So we also consider the ‘man/machine’ interface.</div><div><br /></div><div>Recent case studies have produced very positive results that surprised our clients and even our own experts! Energy savings of 10% or more could be delivered from assets that were already operated and maintained to best international standards.</div><br /><br />

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