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Emission Control System

Current Smokestacks ·  Emission Control System · Comparison with Current Technology · Costs/Benefits


smokestack before and after

The emissions problem & ALZURE's solution

Worldwide there are 50,000 power plants producing CO2 and other emissions. A typical 500-megawatt coal power plant produces 3.5 billion kWh per year. To produce this amount of electrical energy, the plant burns 1.43 million tons of coal and emits 10,000 tons of sulphur dioxide (SO2), 10,200 tons of nitrogen oxides (NOX) and 3,700,000 tons of carbon dioxide CO2   ... read more ...

ALZURE’s unique emission control system (ECS) is capable of removing over 98% toxins and of CO2 from any smokestack. Clean, metal-free CO2 & nitrogen can be bottled & used by industry and solid waste can be converted into fertilisers.  ... continue below ...

ALZURE'S EMISSION CONTROL SYSTEM (ECS)

nasty Smokestacks

Current smokestack technologies are expensive and incapable of cleaning all toxic wastes. In addition, they have little or no effect on the emission of CO2. As emission standards become evermore stringent, many of today’s power plants and other emitters will be forced to close or their operators will incur penalties.

Not only does our ECS solution clean up emissions, it promotes sustainability by allowing the separation and bottling of the CO2 for onward sale to users of the gas and the solid end-waste can be converted into fertiliser.

Our ECS can remove over 98% of all toxins and greenhouse gases. The ECS is completely scalable and can be designed to capture, remove and, where required, to recover gases and other compounds of intrinsic value for onward sale.

HOW OUR ECS WORKS

The system works by first passing the exhaust gas through a heat exchanger to cool the gas to around 80℃ (typically from around 800℃ in a power station). The gas is then passed through a series of contact tanks containing a proprietary, remediant liquid. Within each contact tank, spray nozzles and perforated diffuser plates ensure maximum interaction between the liquid and the flue gas for optimal efficiency.

As the flue gas exits each tank it enters the next and then subsequent contact tanks until finally passing to atmosphere. The number and size of the contact tanks is dependent on the client’s requirement, the level of contamination of the flue gas and the volume that needs to be processed (three are shown in the diagram – a typical setup for a mid-size coal-fired power plant).

The liquid is collected from the contact tanks and routed through individual gas separation chambers, one for each gas to be removed. In the schematic only a CO2 separation chamber is shown but there could also be chambers for the recovery of other gases such as nitrogen. After gas recovery, the liquid from the contact tanks passes into a proprietary sedimentation process by which solid waste is extracted. The liquid is then recycled and replenished automatically.

Ultraclean design

The whole process is especially reliable and largely automated with sensors at each critical point of the system including in the exhaust. The only consumable of note is the remediant liquid which has a life of between 2 to 4 weeks, depending on how polluted the flue gas is. The system's sensors measure the performance of the remediant liquid, and it is automatically replenished to maintain optimal performance.

Separated gases are clean and metal-free and can be bottled or liquefied for onward sale. The CO2 could also be pumped directly into a biofuel plant with any excess being bottled for onward sale. Solid waste is collected from the sedimentation process and after any precious metals have been recovered can be used in the manufacture of fertiliser.

The ECS can be installed in any size of plant and can capture and separate or hold the following pollutants:

smokestack contaminants to be removed

COMPARISON: ALZURE ECS V. CURRENT TECHNOLOGY

ALZURE's ECS is a key weapon in the fight against global warming: it meets the challenge of producing ever cleaner energy and the problem of using fossil fuels in the future. Now that greenhouse gases are being targeted with more stringent controls and penalties including 'green taxes', the ability to remove over 98% of greenhouse gases using a simple, low-cost system could alter the perspective on coal-fired power and furnaces across the globe.

Comparing the capability of our ECS with the current ‘best of breed’ reveals how this new and exciting solution is a game-changer. It could not only open up the possibility of exploiting the vast global reserves of coal for power and manufacturing but vastly reduce the production of man-made greenhouse gases while allowing the extraction and recovery of precious metals and the almost complete removal of radioactive substances and other toxins from smoke. In the table below we compare our Emission Control System with the current, best-available technology.

ALZURE's ECS: Current Technology:
 one solution for all waste  multiple complex solutions
 solid waste can be recycled  waste in multiple forms – difficult and expensive to transport
 income from solid waste and CO2 and other gases  high waste disposal costs
 environmentally sustainable  environmentally harmful
 can be configured to capture over 98% of CO2  limited effectiveness/no effectiveness in CO2 removal
 meets all current and likely future emissions control targets  will not meet more stringent emission control standards
 low installation and operating costs  high installation and operating costs
 coal-fired power stations economically viable for longer  coal-fired power stations being closed prematurely
 changes the future viability of fossil fuels  does nothing to exploit potentially hundreds of years of coal energy
 could reduce global warming  does nothing to reduce global warming

The figure below shows the reductions that could be achieved in the annual emissions of greenhouse and other harmful gases from a typical modern 500MW coal-fired power station if it was to be fitted with an ALZURE ECS.

smokestack before and after

A CLEANER GREENER FUTURE

Just imagine, in a few years time every 100 coal-fired power stations with ALZURE's Emission Control System could produce the same total pollution as just 1 does today.

COSTS & BENEFITS

prototype-under-test

Every flue is different and each fuel has its own characteristics so the price of each installation will vary depending on these and other factors such as what level of emission control is sought.

Our ECS can be scaled to meet a wide range of applications including:

  • glass, rubber, plastic, chemical, paper and steel manufacturing plants
  • aluminium smelters
  • oil refineries
  • oil-fired, waste-fired, gas-fired and coal-fired power plants
  • heavy diesel vehicles, such as ships

In fact, the system is inherently flexible – it can be bolted onto extant systems in a plant or used to replace them completely. It is obviously best to build our ECS into each and every new power station or plant from the outset.

Our solutions will always beat the current systems for installation cost. The running costs will be significantly lower than for other technologies.

ALZURE's ECS can also generate revenue: captured clean CO2 can be fed directly into a biofuel manufacturing plant or bottled for onward sale. Nitrogen can similarly be captured, liquefied and sold on. Precious metals can be recovered from the solid waste and the end-product used as a base for fertiliser. Hence, the cost of operation can be offset to a large degree by the sale of previously inaccessible value through tailored waste recovery.