flue gas recirculation Articles

  • Recyclone MH System to Reduce Particulate Matter from a coal or palm shell BFB Boiler Flue Gas below 150mg/Nm3 - Case Study

    Foreword Advanced Cyclone Systems, S.A. (ACS) designed and supplied a Mechanical Recyclone (Recyclone MH) for Basuki Pratama Engineering. Basuki, based in Pulogadung (Jakarta, Indonesia) is the Indonesian leading producer of non-polluting high efficiency steam boilers, as well as thermal oil heaters using fluidized bed combustor or chaingrate stoker. The installed ...

  • Removal of ecologically harmful pyrolysis gas and vapours

    Type     HOFGAS®- IFM4c/1000 Commissioning     August 2002 Site     Waste water treatment plants Situation As a result of new authority requirements, Romag AG set up operation of a plant for the drying and gasification of wastewater sludge. Drying vapours are formed during the sludge drying and pyrolysis gas during gasification. These emissions must be burned in an ecological way, ...


    By Hofstetter BV

  • Advanced WESP designs assure superior gas cleaning performance

    Nowadays, many industries are facing formidable environmental challenges and there is a growing need for effective, economical gas cleaning and air pollution control equipment. Michael Beltran of Beltran Technologies, Inc. reports on a renewed interest in high-efficiency wet electrostatic precipitators (WESPs) and discusses their importance for controlling sulphuric acid mists and other ...


    By Beltran Technologies, Inc.

  • NOx Control on a Budget

    National, regional and local regulations to reduce NOx emissions have prompted the development and implementation of a number of NOx control technologies – from selective catalytic reduction and low-NOx burners to overfire air and flue gas recirculation. Induced flue gas recirculation (IFGR), a design derivative of conventional forced flue gas recirculation, has demonstrated NOx reductions as ...

  • Precipitator Solves Dryer Problem

    Plum Creek Manufacturing, Columbia Falls, Montana, installed a PPC Industries electrostatic precipitator to solve a direct fired dryer dust plugging problem. The electrostatic precipitator was installed in a very congested area and the project had to be done so the dryer was off-line a minimal amount of time. Plum Creek personnel relocated existing equipment, poured concrete footings, ran all of ...

  • Cost-Effective NOx Control for Air-Preheated Systems

    New advancements in combustion control technologies, such as flue gas recirculation (FGR) and low NOx burners (LNB), have made it possible to achieve ultra low NOx levels without using expensive post-combustion flue gas clean-up technology. For some natural draft units it may be possible to meet the most stringent of the NOx regulations with cost-effective combustion control technologies. For ...

  • Saving waste in the boiler house

    Burner technology has improved greatly in recent years. Older Burners had a series of cams and levers that were calibrated to provide specific amounts of air for a particular rate of firing. Being mechanical items, these wore and sometimes required calibration. They, therefore, had to be regularly serviced and calibrated. Generally, new burners use frequency controlled motors and cams to open air ...


    By EBE Engineering Ltd.

  • Case study - WESPs: Securing a cleaner future for power-generating facilities

    This article explains why wet electrostatic precipitators remain a viable technology for dealing with today's increasingly stringent compliance issues. Despite recent, recession-related volatility in both power generation and consumption, industry analysts expect a resumption of long-term growth trends as continued global demand for energy — in both developed and developing nations ...


    By Beltran Technologies, Inc.

  • Theory of Cost Effective NOx Control

    NOx is one of the primary air pollutants emitted from combustion processes and environmental regulations are the only driver forcing industry to install NOx control systems. In the Houston Galveston area alone, there is over 6,000 point sources that would need to be controlled to comply with the new State Implementation Plan adopted by the TNRCC. Many in the industry are in the process of ...

  • Case study - Rockwood Pigments chooses Beltran System

    Rockwood Pigments, a global manufacturer of pigment products, has chosen a wet electrostatic precipitator (WESP) system engineered by Beltran Technologies, Inc.. to clean process gas streams before entering a sulfuric acid plant at its Easton, Pa., manufacturing facilities. Rockwood is the world's second laraest manufacturer of iron oxide and other inorganic color pigments used by paint and ...


    By Beltran Technologies, Inc.

  • Enel power, italy – brindisi project – ZLD plant for FGD wastewater treatment

    The Facility The Brindisi Sud Power Plant is equipped with four coalfired units each of 660 Mwe capacities. These units normally fire imported coal with < 1% Sulphur. The flue gases are treated sequentially by SCR-DeNOx with ammonia as reagent, High efficiency ESP to remove fly ash and wet limestone gypsum forced oxidation DeSOx. Each unit is equipped with a 2 x 50% DeSOx lines each ...

  • ENEL power, italy – la spezia project – ZLD plant for FGD wastewater treatment

    The Facility The La Spezia Power Plant is equipped with 1 x 600 MW coal-fired power unit and 2 x 350 MWe gas-fired combined cycle power units for a total of 1300 MWe. The unit normally fires imported coal with < 1% Sulphur. The flue gases are treated sequentially by FGD absorber. It is equipped with a 1 x 100% DeSOx lines with an absorber. The blow down from the absorber, along with ...

  • Case study - JJO wood waste – biomass

    A UK leading producer of kitchens and bathroom furniture invest in the future of no costs for the disposal of wood waste and no oil or gas bills for heating of the total company site premises. J J O PLC – manufacturer of Colonial Kitchens, Colonial Bedrooms, eco Kitchens and eco Bathrooms. Founded over 100 years ago and now the leading supplier to many of the best outlets within the ...


    By Mawera (UK) Ltd

  • ENEL power, italy – sulcis project – ZLD plant for FGD wastewater treatment

    The Facility The Sulcis Power Plant is equipped with 1 x 345 MW fluidized bed boiler and 1 x 240 MW conventional boiler. This coal-fired power plant is located in Sardinia Island and has a total of 585 Mwe capacity. The units normally fire imported coal with < 1% Sulphur. The flue gases are treated sequentially by SCR-DeNOx with ammonia as the reagent. This is followed by a high ...

  • Innovative wet electrostatic precipitators assure competitive edge in acid marketplace

    The unsteady global economic recovery continues to subject many core industries to persistent volatility in profits, prices, markets and capital investments. However, some analysts remain optimistic about the global international trade in sulfur in all forms, particularly sulfuric acid. This versatile mineral acid is both the world’s most widely used chemical, and the one with the highest ...


    By Beltran Technologies, Inc.

  • NOx in Non-Utility Industries - Part II - Control options and monitoring methodology

     This the second in a two-part series. Part I, which appeared in our June 2001 issue focuses on air emission origins of nitrogen oxides (NOx) in non-utility industries. Choice of the NOx control technology is dependent on many factors, including regulatory requirements, technical feasibility, cost and public perception. Figure 1, compiled based on publications [1-5], presents a summary of ...


  • To MACT and Beyond case study

    In the 1970s, FMC Corp., a chemical manufacturer headquartered in Philadelphia, began operating a high-efficiency thermal destruction facility to dispose of hazardous liquid wastes at its Baltimore pesticide manufacturing plant. The facility used a thermal oxidizer with a rapid quencher and packed tower scrubber to remove air pollution emissions. The system was upgraded in the early ’80s ...


    By Bionomic Industries Inc.

  • WESPS continue to deliver

    Compliance with the increasingly stringent air pollution regulations of recent years is not the only reason forwardthinking industry leaders are adopting more sophisticated gas cleaning and air pollution control strategies. The desire to achieve higher performance efficiencies, control costs in a competitive marketplace, and stay ahead of the regulatory compliance curve is another driver of ...


    By Beltran Technologies, Inc.

  • NOx in Non-Utility Industries - Part I NOx in Non-Utility Industries - Part I - Air emission origins, best control solutions and monitoring methodology for nitrogen oxides

     Problems with reducing nitrogen oxides (NOx) are widespread in the general process industries. These industries, together with medium size utility and power generators contribute about 15 percent of global NOx emissions. The emission sources addressed include various heaters employed in chemical and petrochemical plants, nitric and sulfuric acid plants, glass furnaces, iron and steel mills, ...


  • Wet electrostatic precipitators: A preferred technology for emission control

    The basic science behind electrostatic precipitators is as familiar and as simple as static cling. But today, this elemental force has been harnessed to a technology that is helping to remove millions of tons of toxic chemicals from our atmosphere; saving billions of dollars annually in pollution-related physical damage; and averting costly impacts on health and mortality rates for millions of ...


    By Beltran Technologies, Inc.

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