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Archives :: Environmental, Health & Safety :: Environmental Management :: Air Pollution Control

Displaying 1 - 20 of 77 stories.
March 1, 2014
The chemical process industries (CPI) are, by their very nature, global in scope. While chemical process operators share many common aspects (in terms of the use of chemical engineering unit operations), the location of their operation brings about different requirements when it comes to managing gaseous and particulate pollutants, because different countries have different regulations with regard to air...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/air_pollution_control/Global-Air-Pollution-Regulations-Variation-is-the-Norm_11540.html
September 1, 2013
Newson Gale Avert static electricity buildup with this hose-continuity tester The OhmGuard Hose-Continuity Tester is designed to continuously ensure that a string of assembled hoses are safely grounded to the transferring vehicle during operations that may produce potentially combustible gas, vapor or dust atmospheres. These testers protect against static electricity that can accumulate to dangerous levels...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/air_pollution_control/Focus-on-Safety-Equipment_10939.html
July 1, 2013
SJV Hose Jet Filters remove dust from air flowrates from 10,000–500,000 m3/h and are suitable for use in the non-metallic industry, wood and plastic processing, blast-furnace operations, and other...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/air_pollution_control/Capture-dust-from-large-airflows-with-this-system_10675.html
May 1, 2013
Regardless of whether one is producing acrylic acid, butanediol, tetrahydrofuran or other chemicals, residues will arise that need to be disposed of. This company delivers turnkey thermal utilization plants for these and other production facilities that...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/air_pollution_control/Thermal-treatment-of-residues-with-heat-recovery_10488.html
April 19, 2013
Praxair, Inc. (Danbury, Conn.; www.praxair.com) and Valero have successfully implemented Praxair’s new CONOx emissions-control technology at Valero’s petroleum refinery in Ardmore, Oklahoma. This technology has helped the refinery meet its fluid-catalytic cracking (FCC) unit oxides-of-nitrogen (NOx) reduction target without requiring a shutdown for installation. FCC units convert petroleum...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/air_pollution_control/Praxair-and-Valero-successfully-implement-patented-CONOx-technology_10440.html
February 1, 2013
 Figure 1. A handful of ceramic proppants is shown here Carbo Ceramics This article covers permitting and directly related design issues associated with thermal processes using drying and calcining for the production of both proppant sand and ceramic proppants (Figure 1) as an illustrative example (see sidebar, "What are proppants"). The permitting issues vary significantly with air-quality...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/air_pollution_control/Environmental-Permitting-Barriers-for-Dryers-and-Kilns_10180.html
October 2, 2012
This article covers permitting and directly related design issues associated with thermal processes used for drying and calcining, using the production of ceramic proppants as an illustrative example. While the magnitude of permitting issues varies significantly with air-quality attainment area status, oxides of nitrogen (NOx), carbon monoxide and particulate matter are always the major issues. With proper...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/air_pollution_control/Proppants-Illustrate-Environmental-Permitting-Issues-for-Dryers-and-Kilns_9782.html
May 1, 2012
Adsorption and absorption play a big role in reducing air pollution in many applications around the world. Studies show that the largest single use of absorbers this year will be to capture SO2 from power-plant flue gas. Adsorbers will be used by many chemical process industries (CPI) to capture volatile organic compounds (VOCs) and odors. A small, but fast growing industrial segment uses ozone and...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/air_pollution_control/Adsorption-and-Absorption_9251.html
February 4, 2012
The Babcock & Wilcox Co. (B&W; Charlotte, N.C.; www.babcock.com) says that its subsidiary, Babcock & Wilcox Power Generation Group, Inc. (B&W PGG), has been awarded a contract to design and...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/air_pollution_control/B-and-W-to-supply-environmental-control-technology-for-Colorado-power-plant_8994.html
February 1, 2012
U.S. Environmental Protection Agency (EPA) regulations call for continuous emissions monitoring (CEM) systems to be tested with “zero-air” materials to qualify the accuracy of the instruments. CEMS operators sometimes mistakenly use a...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/air_pollution_control/CEM-standards-that-achieve-regulatory-compliance_8964.html
January 29, 2012
The Babcock & Wilcox Co. (B&W; Charlotte, N.C.; www.babcock.com) says that its subsidiary Babcock & Wilcox Construction Co., Inc. (BWCC) has been awarded a contract worth more than $75 million to provide construction services for the installation of...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/air_pollution_control/B-and-W-awarded-$75-million-environmental-construction-contract-for-Indiana-power-plant_8933.html
September 1, 2011
Steam-assisted, gravity-drainage (SAGD) operations employ large tanks that vent flammable and sometimes toxic gases. Safety and environmental concerns often require engineers to design vapor-recovery units (VRUs) to collect these gases and redirect them to a useful location — frequently for use as a fuel gas in a steam-generation system. When choosing a VRU setup for an SAGD facility, the two most...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/air_pollution_control/Tank-Vapors-Optimize-Ejector-Sizing-for-Better-Control_8440.html
May 1, 2011
Combustion provides heat for many industrial processes and accounts for over 80% of the power used by turbines to generate electricity. Over the past several decades, regulatory action and concerns over environmental air pollutants, such as oxides of nitrogen (NOx), have pushed industrial process designers to develop burners that lower pollutant emissions and prompted manufacturers to switch to...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/air_pollution_control/Burner-Design-for-Fuel-Flexibility-and-Efficiency_7978.html
April 1, 2011
Regulatory authorities around the world require continuous emissions monitoring of certain pollutants from large combustion sources. There are two main technologies for monitoring these emissions on a continuous basis — the more traditional one relies on sampling and analyzing exhaust gases from a continuous emissions monitoring system (CEMS); and the newer one relies on software that uses...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/air_pollution_control/PEMS-The-Low-Cost-Alternative-To-Emissions-Monitoring_7741.html
March 28, 2011
This firm’s continuous particulate-emission monitor and baghouse-filter leak detector (photo) effectively automates the U.S. Environmental Protection Agency’s (EPA; Washington, D.C.) maximum achievable control technology (MACT) requirements, thus improving air-quality...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/air_pollution_control/Automate-Air-quality-Standards-with-this-Device_6583.html
March 28, 2011
Regenerative thermal oxidizers (RTOs) have been commonly used for purification of exhaust streams. However, a separate unit has always been required to evaporate any remaining aqueous residues. The Ecopure EVA is a completely new...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/air_pollution_control/Combine-Thermal-Oxidation-with-Evaporation-and-save-Energy_6628.html
March 28, 2011
Designed for low-pressure, lightweight applications, the 8400-HT expansion joint (photo) provides high resistance to corrosive gases such as SO2 and H2SO4 — making the product well suited...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/air_pollution_control/Try-this-Expansion-Joint-for-Flue-Gas-Desulfurization_6690.html
March 28, 2011
Allison Engineering The portable Boreal Laser Gas Finder 2 (photo) is ideal for open-path, ambient gas detection and multiple-path monitoring applications. The unit is permanently...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/air_pollution_control/Check-for-leaks-over-a-wide-area-with-this-laser-based-system_6881.html
March 28, 2011
KWPKC-Monobloc (photo) is a new pump series designed for use in secondary circuits of fluegas desulfurization (FDS) plants. The main application of these pumps is to transport limestone slurry and circulating water, to remove gypsum and to...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/air_pollution_control/Process-pumps-for-FDS-units_7029.html
March 28, 2011
The MT Series of Multipoint Mass Flowmeters (photo) are designed for gas and air applications, including continuous emissions monitoring systems, and thus are suitable for measuring and monitoring stack emissions. The flowmeters are ISO 14164:1999 (E)...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/air_pollution_control/This-flowmeter-is-designed-for-monitoring-stack-emissions_7041.html
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