Friday, July 30, 2010

Refinery NSPS

Here are a couple articles about Petroleum Refinery NSPS Subparts J and Ja:

Summary 1 of NSPS Subparts J and Ja

Shorter Summary of NSPS Subparts J and Ja

This article focuses specifically on enforcement and regulation of flare emissions at refineries:

Flare Enforcement Trends

Air Dispersion Conversions and Formulas

Web site for the "Fundamentals of Stack Gas Dispersion" book.

This page includes:
  • mg/m3 <--> ppmv
  • calculation of gas densities
  • Pasquill stability classes
  • mass flow rates <--> volume flow rates
  • exhaust gas generated from combustion of fuels
  • correcting concentrations to reference conditions
  • etc.......

 
Conversions and Formulas

Tuesday, July 20, 2010

Tuesday, July 13, 2010

Montana Oil and Gas Registration & Compliance Flow Chart

Bret prepared this for some of his clients, July 2010:

Flow Chart

Friday, July 2, 2010

Proposed Solid Waste Definition and Incineration Rules

Proposed changes to CISWI NSPS and emission guidelines. Note that cement kilns were exempt but would not be under the proposed rule.

Proposed Changes to CISWI NSPS

Proposed definition of solid waste would generally exclude clean biofuel and TDF (after removal of steel belts and wires).

New Solid Waste Definition Proposed

Final 1-hr SO2 Standard and Fact Sheet

1-hr SO2 Fact Sheet

SO2 1-hr Stnd, Final 6/22/10

New NO2 Air Standards Prove Technically Challenging

This article from Trinity Consultants refers to June 28, 2010 modeling guidance from EPA (link below) that doesn't actually provide much guidance, but it does suggest an interim SIL. It also reports a SIL that NESCAUM states are using. The article discusses methods for estimating NO/NO2 ratios.

Trinity Consultants - New NO2 Air Standards Prove Technically Challenging

EPA NO2 Modeling Guidance 6/2010