Nox Removal (NOx control - Air and Climate) Articles

Chemical Aspects of NOX Scrubbing

With the passage of the 1990 Clean Air Act Amendments, many chemical and metal industries and utility producers will now be required to further limit the amount of NOX (Nitrogen Oxides) produced. NOX is a precursor to ozone in the atmosphere, and is believed to be a major contributor to acidic deposition (acid rain). Formation of ozone: NO2 + Hv ...

Jan. 1, 2001

NOx Scrubbing Technology Breakthrough

Pacific Rim Design and Development and Dupont are proud to introduce a technology breakthrough in the treatment and safe elimination of problematic nitric oxide (NO) and nitrogen dioxide (NO2 ). There are six forms of nitrogen oxide (NOx); the drawings to the right show the two most problematic forms. These two are of particular interest because they are identified as atmospheric ...

Feb. 14, 2013

The Chemical Aspect of NOx Scrubbing

With the passage of the 1990 Clean Air Act Amendments, many chemical and metal industries and utility producers will now be required to further limit the amount of NOx (Nitrogen Oxides) produced. NOx is a precursor to ozone in the atmosphere, and is believed to be a major contributor to acidic deposition (acid rain). Formation of ozone: NOx is produced in a variety of ...

Feb. 16, 2016

By CR Clean Air Group, LLC

Computational modelling of NOx removal by selective non-catalytic reduction

This paper presents the results of computational kinetic modelling of the removal of nitrogen oxides (NOx) from flue gases by selective non-catalytic reduction (SNCR) process using urea as a reducing agent. CHEMKIN and SENKIN computer codes were used with latest reaction mechanism parameters for simulated conditions in an isothermal plug flow reactor. Flue gas initial conditions were simulated as ...

Jun. 27, 2007

By Inderscience Publishers

Removal of Particulate Matter (PM) and NOx from marine exhaust gas by combining electrostatic water-spraying scrubber and emulsion oil

In this study, experiments were performed with combination using emulsion oil and an electrostatic water spraying scrubber to evaluate effectiveness for simultaneous removal of NOx and Particulate Matter (PM) emissions in marine exhaust gas. The effects of several parameters, such corona power, gas flow rate, on the contaminant removals have been investigated intensively. Total PM removal ...

Aug. 2, 2010

By Inderscience Publishers

Design of a dual-bed catalyst system with microporous carbons and urea-supported mesoporous carbons for highly effective removal of NOx at room temperature

Abstract A dual-bed catalyst system is designed to remove NOx at room temperature, which consists of a microporous spherical activated carbon (SAC) layer and a urea-supported spherical mesoporous carbon (SMC) layer. The SAC layer, with plenty of narrow micropores acting as a nano-cage for NO adsorption, could improve the oxidation of NO into NO2, ...

Mar. 10, 2016

By ECO PHYSICS AG

Technology Spotlight: BIONOxSOLVER NOx: An Eco-Friendly Scubbing Solution

NOx scrubber installations employing Bionomic Industries' BIONOxSOLVER have proven to be simpler, safer and considerably more cost effective than systems using sodium sulfide or hydrosulfide scrubbing reagents. Sodium sulfide and hydrosulfide are DOT libeled hazardous compounds that require dealing with major worker safety issues. They are extremely corrosive, causing difficulties in safe ...

Jan. 1, 2012

By Bionomic Industries 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 ...

Jan. 1, 2001

Why You Should Consider a Sample Conditioning Unit for Taking Low NOx Measurements When Using a Portable Emissions Analyzer

Using state-of-the-art technology, we here at E Instruments create high-quality portable industrial combustion gas and emissions analyzers that are capable of taking precise, low NOx measurements for both NO and NO2. In particular, we recommend our sample conditioning unit to those of you who need to take accurate, low NOx or SO2 ...

Jun. 22, 2017

By E Instruments International, LLC

Heterotrophic nitrogen removal in Bacillus sp. K5: involvement of a novel hydroxylamine oxidase

An aerobic denitrifying bacterium isolated from a bio-trickling filter treating NOx, Bacillus sp. K5, is able to convert ammonium to nitrite, in which hydroxylamine oxidase (HAO) plays a critical role. In the present study, the performance for simultaneous nitrification and denitrification was investigated with batch experiments and an HAO was purified by an anion-exchange and gel-filtration ...

Oct. 3, 2017

By IWA Publishing

Model-based evaluation of mechanisms and benefits of mainstream shortcut nitrogen removal processes

The main challenge in implementing shortcut nitrogen removal processes for mainstream wastewater treatment is the out-selection of nitrite oxidizing bacteria (NOB) to limit nitrate production. A model-based approach was utilized to simulate the impact of individual features of process control strategies to achieve NO−2-N shunt via NOB ...

Mar. 27, 2015

By IWA Publishing

Reducing emissions via the use of electrical discharge techniques

Abstract This report reviews the current use of electrical discharge techniques in air pollution control. The recent development of non-thermal plasma techniques in pollutant control technology has been driven by national and international legislation. Fundamental ideas behind this new technology are discussed and various methods of increasing the energy efficiency of the removal ...

Dec. 17, 2015

By United Agri Systems Canada Inc. (UAS)

Electrochemical Exhaust Gas Purification - SAE technical paper series

This text is divided into Iwo parts; the first part gives a short recapitulation 01 the development status 01 the eiectrochemical reactor lor soot removal, while the second part gives a description 01 activities on electrochemical NOx reduction. The Electrochemical Reactor lor filtration and continuous combustion 01 soot lrom diesel exhaust gas has been described earlier [1, 2]. The reactor size ...

Dec. 10, 2010

By Dinex A/S

Nitrogen Oxide Technology gives American Superconductor an economical, environmentally friendly treatment solution

The installation of Bionomic Industries Inc.'s (Mahwah, NJ) innovative ScrubPac. BIONOxSOLVER" abatement system is enabling American Superconductor Corporation to treat the nitrogen oxide (NOx) emissions from a calcination process at its new, high temperature superconductor manufacturing facility (Devens, MA), in a cost-effective, environmentally responsible way. Bionomic Industries' ...

Dec. 18, 2015

By Bionomic Industries Inc.

Three-Way Catalysts for Talisman Energy

Description Natural gas compressor station in northern Alberta, Canada, powered by Waukesha 7042 GSI engines. Challenge The challenge was to meet emission targets for NOx, CO and non-methane hydrocarbons, for a variety of compressor engines with different exhaust configurations. Solution DCL supplied the catalyst housings in two basic configurations for this project. ...

Sep. 11, 2006

By DCL International Inc.

Nitrogen Oxide Technology Gives American Superconductor an Economical, Environmentally Friendly Treatment Solution

Untitled Document The installation of Bionomic Industries Inc.'s (Mahwah, NJ) innovative ScrubPac™ BIONOxSOLVER abatement system is enabling American Superconductor ...

Jan. 1, 2005

By Bionomic Industries Inc.

Nitrous oxide (laughing gas) - Case Study

Example: Uranium enrichment Similar tasks: Nitric acid caprolactam production When uranium ore is converted into uranium hexafluoride (UF6) for uranium enrichment employing the diffusion process, or also when producing nitric acid and nitrogenous fertilizers for farming, laughing gas is produced by several undesirable side reactions. Thermal decomposition ...

Aug. 30, 2014

By Chemisch Thermische Prozesstechnik GmbH / CTP Air Pollution Control

Federal transport rule — the “new cair” round 1

On August 2, 2010, EPA proposed the long- awaited replacement for the Clean Air Interstate Rule (CAIR), which was rejected in 2008 by the D.C. Circuit Court of Appeals. Now called the Transport Rule (TR) by EPA, the new rule revises the CAIR approach to conform with the court ruling. In this first version (Round 1) of TR, overall emission budgets for NOX are similar to the initial period in CAIR; ...

Oct. 5, 2010

By Trinity Consultants

Breakthrough Nitrogen Oxides chemistry saves costly scrubber addition at ShinEtsu America case study

By using an innovative chemistry to treat nitrogen oxides (NOx) emissions, silicon wafer manufacturer ShinEtsu America, Inc.. (SEH) avoided adding a costly new scrubber The scrubbing solution, a drop in replacement for sulfide chemistries, enables SEH to meet air and wafer emissions requirements and eliminate nuisance odors at its Vancouver. WA, facility. The unique scrubbing solution was ...

Apr. 1, 2005

By Bionomic Industries Inc.

CPI Installs Catalytic Oxidizer at Pharmaceutical Mfg Company

Catalytic Products International (CPI) recently completed the installation of a new VECTOR Series Catalytic Oxidizer (CatOx) at a Western USA manufacturer of pharmaceutical products for the abatement of Volatile Organic Compounds (VOCs). ...

Jan. 4, 2018

By Catalytic Products International (CPI)

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