Technical Articles

Technical Articles

• SNCR vs. SCR: What Is the Difference?
  From Korea's emission charges and cap system to principles, limits and how to choose At a glanceThe biggest difference between SNCR and SCR is whether a catalyst is used, and that one difference sets their reaction temperature, NOx removal efficiency and insta…
• Where Does Nitrogen Oxide (NOx) Come From?
  From the three formation routes to what is specific to incinerators, and how combustion controls differ from post-combustion treatment At a glanceNOx forms during combustion when nitrogen in the air and nitrogen in the fuel (waste) combine with oxygen at high …
• How Is an Incinerator Flue Gas Treatment System Arranged?
  Where SNCR, reactors, baghouses and SCR sit, what each one does, their pros and cons, and the order to check themAt a glanceWaste incinerator flue gas is generally treated in this order: SNCR inside the furnace, a reactor (SDR/DR), a baghouse and, where needed…
• What Is an ePTFE Membrane?
  From how PTFE becomes a microporous membrane to how to select and check industrial filter bags At a glancePTFE is the name of a material; an ePTFE membrane is a film made by stretching PTFE to create fine pores. An ePTFE membrane is a thin film that combines t…
• How Do You Choose the Right Filter Bag Material for Your Process?
  From heat and chemical resistance to base fabric vs. membrane and industry-specific criteria At a glanceTo choose the right filter bag material for your process, match the operating temperature first, then narrow the candidates by acid gases and moisture, oxyg…
• Depth Filtration vs. Surface Filtration: What Is the Difference?
  How the place where a filter bag captures dust shapes outlet emissions and long-term pressure drop. At a glanceThe key difference between depth filtration and surface filtration is where the dust is captured. In depth filtration, dust penetrates into the fiber…
• Electrostatic Precipitator (ESP) vs. Baghouse: What Is the Difference?
  From collection principles and operating conditions to maintenance and hybrid collectors At a glance An electrostatic precipitator (ESP) uses electrical force to drive dust onto collecting plates, while a baghouse (fabric filter) passes flue gas through filter…