vapor emissions Articles

  • Testing VOC Evaporation Losses from Floating Roof Tank Turnovers

    Air emissions from floating roof tanks have been well characterized and documented by the U.S. Environmental Protection Agency (EPA). The estimation methods have been revised and updated throughout the years. However, an unusual aspect of air emissions from tanks with a floating roof during a tank turnover has not been addressed. Petroleum storage tank floating roofs are landed on tank legs and ...


    By Trinity Consultants

  • `Testing VOC Evaporation Losses from Floating Roof Tank Turnover,` published in Oil and Gas Journal, December 10, 2001

    Abstract Air emissions from floating roof tanks have been well characterized and documented by the U.S. Environmental Protection Agency (EPA). The estimation methods have been revised and updated throughout the years. However, an unusual aspect of air emissions from tanks with a floating roof during a tank turnover has not been addressed.  Petroleum storage tank floating roofs are ...


    By Trinity Consultants

  • In-situ Technology for Clean up of Halogen Contaminated Sites - Process West case study

    Halogenated volatile organic solvents are found in the soil or ground-water at many former and active industrial sites. Fortunately highly effective remediation technologies are available to restore these former brownfields to a healthy state. The range of technologies includes the traditional approach where the contaminated soil is excavated and the volatile halogenated contaminants are ...


    By Bionomic Industries Inc.

  • Low-mass PM analyzer MEXA-1370PM — Improvement of the Performance for PM Composition Analysis —

    Particulate matter (PM) emitted from engines is currently measured by the filter weight method. The filter weight method passes diluted emission gases through a filter collecting the PM, and post test weighs the mass of the collected PM on a precision balance. However, this method is time consuming, and with decreasing PM emission volumes, improvements in accuracy were needed. So the MEXA-1370PM ...


    By HORIBA Europe GmbH

  • Vaccu.Lan for Green

    You're building a 'green' science building, and some of your laboratories require vacuum support. How do you provide vacuum for those labs? You can't use an oil-sealed rotary vane vacuum pumps in the labs. The oil mist would contaminate the laboratory air, and the noise pollution makes the working environment unpleasant. The pump oil would quickly be contaminated by biological and chemical ...

  • Case study - Engine cell exhaust: RTO

    Problem A Mid-western outboard engine manufacturer bought a three year-old plant for the production of its marine engines. When finished the engines are removed from the assembly line and run for quality control. The 25,000 SCFM of exhaust from testing contains volatile organic compounds (VOCs) that require regulatory compliance. Also, within this exhaust is a great deal of water vapor ...

  • Case study - Engine test cell exhaust: RTO

    Overview A Mid-western outboard engine manufacturer bought a three year-old plant for the production of its marine engines. When finished, the engines are removed from the assembly line and run for quality control. The 25,000 SCFM of exhaust from testing contains volatile organic compounds (VOCs) that require regulatory compliance. Also within this exhaust is a great deal ...

  • RFA Asks EPA To Allow Higher Ethanol Blends In Midwest Region After Refinery Outage Leads To High Prices At The Pump

    On August 14, 2015, the Renewable Fuels Association (RFA) asked EPA to waive Reid Vapor Pressure requirements for E15 and to also allow E12 blending. Reid Vapor Pressure is a measure of gasoline's volatility and is regulated in the summer months to reduce health ...

  • Minimization of Major Air Pollutants from Sewage Sludge Fluid Bed Incinerators

    ABSTRACT Emissions of major air pollutants including carbon monoxide (CO), nitrogen oxides (NOx) and mercury (Hg) were studied at two sewage sludge fluidized bed combustion (FBC) plants. Both the North West Bergen (NWB) County Utility Authority and the Little Miami (LM) plants have air pollution control systems (APCS) that are of the wet type. Various operating conditions such as temperature, ...

  • The Progression of Remediation

    Environmental remediation involves the cleanup of contaminated ground water and/or soils impacted by a variety of contaminates. The predominate contaminates over the years have been petroleum hydrocarbons from leaking underground storage tanks and surface spills, as well as solvents and other volatile organic compounds (VOCs) from industrial processes. Today, the most effective, practical, and ...


    By EPG Companies Inc.

  • Factors affecting spatial variation of polycyclic aromatic hydrocarbons in surface soils in North China Plain

    The spatial variation in concentrations of 16 polycyclic aromatic hydrocarbons (PAHs) in surface soils in the North China Plain and the influential factors were examined in the present study. High concentrations of the sum of 16 PAHs (∑PAH16) appeared in cities and their surrounding areas. Emissions and soil organic carbon (SOC) content significantly regulated spatial differentiation of PAH ...


    By John Wiley & Sons, Ltd.

  • When are Oil Wells an Explosive Hazard?

    Contrary to popular belief, an oil well can be an explosive hazard even when it is not in operation (pumping steady). An EnergyWire review of federal labor statistics cited that the oil and gas sector experiences the most deaths from fires and explosions, compared to other private industries. Risks of Explosive Elements around Oil Wells A recent explosion in ...


    By Larson Electronics LLC

  • Model predictions of toxaphene degradation in the atmosphere over North America

    Technical toxaphene (TT), a broad‐spectrum pesticide mixture, degrades in the environment, resulting in potential changes in toxicity. The present study uses a multi‐media model that we developed to estimate toxaphene degradation in the atmosphere over North America. The predicted degradation has strong spatial and temporal variability determined by processes such as emission and transport of ...


    By John Wiley & Sons, Ltd.

  • Upstream Particulate Removal for Rtos on Direct-Fired Osb Dryers – How much is enough?

    Abstract Since 1994 Regenerative Thermal Oxidizers (RTOs) have been applied to direct wood-fired OSB dryers for the purpose of VOC abatement. In early direct wood-fired OSB dryer applications many OSB producers felt that upstream particulate control was not necessary. However, the ash from the combustion of wood waste created a host of new operational problems for the RTO systems. This paper ...


    By Lundberg, LLC

  • Case study - Pemaco superfund site remediation

    OVERVIEW Pemaco was formerly a chemical facility located in a light industrial and residential area of Maywood, CA, adjacent to the Los Angeles River. No one knows how long hazardous substances had been leaking into the ground but the operations date back to the 1940's.  Up until closure of the facility in 1991, chlorinated solvents, aromatic solvents, and flammable liquids had ...

  • Electronics Manufacturing Industry - Pollution Prevention Guidelines

    Introduction Pollution Prevention Guidelines to provide technical advice and guidance to staff and consultants involved in pollution-related projects. The guidelines represent state-of-the-art thinking on how to reduce pollution emissions from the production process. In many cases, the guidelines provide numerical targets for reducing pollution, as well as maximum emissions levels that are ...


    By The World Bank

  • The Ultimate Way To Stop Global Warming

    The Earth's surface temperature has risen by about 1 degree Fahrenheit in the past century, with accelerated warming during the past two decades. There is new and stronger evidence that most of the warmth over the last 50 years is attributable to human activities. Human activities have altered the chemical composition of the atmosphere through the buildup of greenhouse gases – primarily ...


    By Bulkmatech (Pty) Ltd

  • How Gas Analyzers Can Benefit the Automotive Industry

    Emissions standards imposed upon auto engineering firms in the US could be set to change, as the Environmental Protection Agency reviews the current standards which have been in place since 2012. The EPA are considering redressing the greenhouse gas emissions standards for light-duty vehicles due for production in the model years 2022—2025, citing changing economic circumstances as the ...


    By Hiden Analytical Ltd.

  • Regenerative thermal oxidizer - three canister RTO for tank car loading and unloading terminal

    Epcon is proud to share its case study for the Tank Truck Loading Terminal. The Problem Loading and Unloading Tank Trucks: When the Tank Trucks are unloaded, it causes a lot of vapor to be released to atmosphere. These emissions have to be controlled and can not be released to atmosphere. The Process Generally speaking, with ...


    By Epcon Industrial Systems, LP

  • Tank cleaning - Regenerative thermal oxidizer

    Three Canister RTO for Tank Car Loading and Unloading Terminal Epcon is proud to share its case study for the Tank Truck Loading Terminal. The Problem Loading and Unloading Tank Trucks: When the Tank Trucks are unloaded, it causes a lot of vapor to be released to atmosphere. These emissions have to be controlled and can not be released to atmosphere. ...


    By Epcon Industrial Systems, LP

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