Newsletter No. 45 Winter 2019

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JANSEN Boiler – Newsletter No. 45 Winter 2019 –

Contents:

  • Power Boiler Upgrade Leads to Increased Biomass Firing and Elimination of Oil Co-Firing
  • Recovery Boiler Upgrade Lifts Liquor Limits
  • Recent Erosion Evaluations on Biomass Boilers
  • New Employees
  • News Briefs
  • Boiler House Cartoon
  • Winter 2019 Biomass Boiler Workshop
  • Receive Our Newsletter by E-mail

Newsletter No. 44 Winter 2018

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JANSEN Boiler – Newsletter No. 44 Winter 2018 –

Contents:

  • Two Superheater Upgrades in the Works for 2018
  • Getting in Tune with Boiler MACT/GACT
  • Stoker Grate Replacements to Increase Biomass Burning and Improve Operator Safety
  • Welcome Our New Co-worker
  • News Briefs
  • Boiler House Cartoon
  • Receive Our Newsletter by E-mail
  • 2018 Biomass Boiler Workshop

Newsletter No. 43 Spring 2017

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JANSEN Boiler – Newsletter No. 43 Spring 2017 –

Contents:

  • Successful Startups Reflect Effective Upgrades
  • Jansen Tackles Four-Boiler Evaluation in Colombia
  • Recent Boiler Efficiency Evaluations and Plant Energy Assessments
  • CFD Modeling Outside the (Furnace) Box
  • News Briefs
  • Boiler House Cartoon
  • Receive Our Newsletter by E-mail
  • 2017 Biomass Boiler Workshop

Newsletter No. 42 Spring 2016

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JANSEN Boiler – Newsletter No. 42 Spring 2016 –

Contents:

  • Jansen Celebrates 40 Years!
  • Recent Biomass Upgrade Passes Performance Test
  • Recovery Boiler Project Briefs
  • Jansen Busy with Startups In 2016
  • News Briefs
  • New Employee: Tim Wilson
  • Boiler House Cartoon
  • Receive Our Newsletter by E-mail
  • 2016 Biomass Boiler Workshop
  • High Efficiency NOx Removal

Newsletter No. 41 Summer 2015

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JANSEN Boiler –
Newsletter No. 41 Summer 2015 –

Contents:

  • Jansen Successfully Upgrades Biomass Boilers in the Power Sector
  • Recovery Boiler Optimization Studies Lead to Boiler Upgrade
  • Boiler MACT & CISWI Rulings Are Here
  • Southbound: Recent Projects in Central & South America
  • Sweet as Sugar: Jansen Upgrades Central American Bagasse Boiler
  • News Briefs
  • New Employee:  Stefan Bjornsson
  • Boiler House Cartoon
  • Receive Our Newsletter by E-mail
  • Dates & Locations Biomass Boiler Workshops in 2015-2016

 

[download_link link=”http://jansenboiler.com/wp-content/uploads/2013/12/Newsletter-No.-40-Winter-2014.pdf”]Download PDF of Newsletter[/download_link]

JANSEN Boiler –
Newsletter No. 40 Winter 2014 –

Contents:

  • NOx Reduction in Recovery Boilers – Jansen has the Answer
  • Fossil Fuel Reduction in CFB – Jansen Wins Major Order
  • Multi-level OFA System for Biomass – Less Effective/More Costly
  • Jansen Technical Papers and Industry Presentations
  • New Product – Actuated Dampers on Individual OFA Nozzles
  • News Briefs
  • New Employee:  Tyler Kimberlin
  • Boiler House Cartoon
  • Receive Our Newsletter by E-mail
  • Dates & Locations Biomass Boiler Workshops in 2014

Newsletter No. 39 Spring 2012

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JANSEN Boiler – Newsletter No. 39 Spring 2012 – RECOVERY BOILER

Contents:

  • Recovery Boiler NOx Reduction – Jansen Lands Several Upgrades
  • Boiler MACT and CISWI Rulings – Another Update
  • Changing of the Guard at Jansen
  • Update on Biomass Boiler Combustion System Upgrades
  • Jansen Technical Papers and Industry Presentations
  • New Employee: Moriel Arango
  • Jansen Projects in Canada
  • News Briefs
  • Visit Jansen’s Booth at Upcoming Conference Trade Shows
  • Receive Our Newsletter by E-mail
  • Boiler House Cartoon
  • Announcement PSA/Jansen Boiler Workshop in Prague
  • Dates & Locations Biomass Boiler Workshops in 2012

Recovery Boiler Capacity Upgrades and NOx Reduction – Jansen Lands Several Upgrades

Mill conversions to dissolving grade pulp production often necessitate recovery boiler combustion system modifications to increase the boiler’s solids burning capacity while at the same time reducing NOx emissions. Recently, Jansen was awarded several of these capacity upgrade contracts. 

In recent years, consumer product market trends in the Pulp & Paper Industry are increasingly favoring dissolving pulp grade products. To meet market demand for these products, several mills are in the process of “retooling” the pulping line from producing conventional kraft pulp to dissolving grade pulp. Typically, this change in product leads to increased quantities of black liquor dry solids (BLDS) generated with potentially higher heating values. Because of the higher heat input rate to the recovery furnace and potential increase in fuel nitrogen content, generation of NOx would be expected to increase, thereby leading to higher stack emission rates.

To improve the recovery boiler’s BLDS throughput capacity and offset potential increases in NOx, optimization of the existing combustion air delivery system is needed and further staging of combustion air supply can be applied by adding a fourth level of air. In the industry, this fourth level of air is named quaternary air (QA) and has been shown to reduce NOx emissions.

At several mills, Jansen was contracted to conduct evaluations of recovery boiler BLDS burning capacity and associated NOx generation before and after making the change from kraft to dissolving pulp. This evaluation typically consists of a site visit for first-hand collection of operating data, followed by process evaluations and mass and heat balance calculations. An important element of the evaluation process is Computational Fluid Dynamics (CFD) modeling of the furnace combustion conditions with the different BLDS supply rates and heating values. CFD modeling is typically conducted for several configurations of combustion air supply and at the conclusion, a parametric evaluation of key performance factors provides valuable input to the engineering design of the air system modifications. The end result is an air system that best meets the client’s needs.

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Newsletter No. 38 Spring 2011

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Newsletter No. 38 Spring 2011 – Boiler MACT Update

Contents:

  • Boiler MACT Updates – Final Rulings
  • Upgrading RDF Boilers – by the 1/2 Dozen
  • Update on Biomass Boiler Combustion System Upgrades
  • Jansen Technical Papers and Industry Presentations
  • New Employee: Andrea Striz
  • Jansen Projects in Canada
  • News Briefs
  • Our Website Has Been Updated
  • Jansen at Pacific West Biomass Conference & Expo
  • Receive Our Newsletter by E-mail
  • Boiler House Cartoon
  • Dates & Locations Biomass Boiler Workshops in 2011

Boiler MACT Update – Final Rulings

EPA Posted Final Ruling in February… Now What?

EPA’s efforts to establish Hazardous Air Pollutants (HAPs) emissions limits for industrial, commercial, and institutional boilers and process heaters (referred to as Boiler MACT rules) continues on its long and twisted path.

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Newsletter No. 37 Spring 2010

Jansen Combustion and Boiler NEWSLETTER Briefs

In this issue: Boiler MACT and Update on Biomass Boiler Combustion System Upgrades

[download_link link=”http://www.jansenboiler.com/newsletters/no37.pdf”]Download PDF of Newsletter[/download_link]

Contents:

  • Boiler MACT – How Combustion Improvements Help Meet Requirements
  • Superheater Upgrades to Increase In-House Power Generation
  • Jansen Presence at International Chemical Recovery Conference (IChRC) in Williamsburg, VA
  • Witnessing a Revival in Energy-from-Waste Industry
  • Update on Biomass Boiler Combustion System Upgrades
  • Jansen Projects in Canada
  • News Briefs
  • Jansen at International Biomass Conference & Expo
  • “Combustion Troubleshooting” Article Published in CanadianBIOMASS Magazine
  • Receive Our Newsletter by “snail” and E-mail
  • Boiler House Cartoon
  • Biomass Boiler Workshop: New Orleans, June 10-11

Boiler MACT

How Combustion Improvements Help Meet Requirements

A new EPA ruling came out April 29, 2010 and is to be finalized by the end of 2010. The ruling’s purpose is to limt hazardous air pollutants from industrial, commercial, and institutional boilers and process heaters.

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Newsletter No. 36 Fall 2009

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  • Boiler Conversions to Biomass Burning
  • Witnessing a Revival in Energy-from-Waste Industry
  • Update on Biomass Boiler Combustion System Upgrades
  • Jansen Co-hosts Boiler Workshop in Prague
  • Superheater and Economizer Upgrades to Increase in-House Power Generation
  • News Briefs
  • Receive Our Newsletter by E-mail
  • Boiler House Cartoon
  • Dates & Locations: Biomass Boiler Workshops in 2010

Boiler Conversions to Biomass Burning

Boiler owner/operators in recent years have been motivated to convert existing fossil fuel-fired boilers to burn some, or exclusively biomass fuels. Biomass fuels often provide lower fuel costs and lower flue gas emissions as well as being considered a
“green” renewable resource. Whether the boiler currently burns exclusively fossil fuels or burns a combination of fossil and biomass fuels, Jansen has the experience and capabilities to provide the necessary services to enhance biomass firing in most all boiler configurations.
A typical phased approach to fuel conversion projects is:

  • Initial assessment of feasibility and required modifications to generate early budgetary costs.
  • Engineering evaluation of existing boiler to determine the unit’s capabilities when operating with the new fuel (pressure parts, auxiliary and pollution control equipment).
  • Definition engineering to develop +/- 10% accuracy cost estimate.
  • Engineering design, fabrication, and materials supply.
  • Installation, operator training, and start-up assistance.

Jansen has the capability and experience to carry out any or all of these steps.
For further information on this work and specific inquiries, please contact Arie Verloop at 425.952.2825, or Ned Dye at 425.952.2827

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Newsletter No. 35 Summer 2008

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  • Jansen Projects in Waste-to-Energy Industry
  • Jansen Supplies Multi-Level Air System Upgrades on Four Recovery Boilers
  • Superheater Upgrades and Replacements to Increase Power Generation
  • Update on Biomass Boiler OFA System Upgrades
  • News Briefs
  • Announcing our 2008 Biomass Boiler Workshop
  • Remembering Mark Leffler
  • Boiler House Cartoons on Jansen Website