From: Schrock, Bill
To: Spence, Kelley Subject: FW:
Date: Tuesday, May 14, 2013 12:54:18 PM
Attachments: Kraft Pulp Mills NSPS OMB 2-21-13.pptx

Bill Schrock
U.S. EPA RTP, NC 27709 (919) 541-5032 (919) 541-3470 (fax)

From: Schrock, Bill Sent: Thursday, February 21, 2013 1:11 PM To: Higgins, Cortney; Thundiyil, Karen; Macpherson, Alex; Adams, Darryl Cc: Rush, Alan; Eck, Janet; Dunkins, Robin Subject:

Cortney

- Robin ask that I forward you the slides for today’s 3:00 meeting. Let me know if you need anything else. Thanks

Bill Schrock
U.S. EPA RTP, NC 27709 (919) 541-5032 (919) 541-3470 (fax)

# Kraft Pulp Mill NSPS Proposal

OMB Briefing February 21, 2013

# Overview

► Sector Background
► Lawsuit History
► NSPS Regulated E mission P oints
► Overview of Emissions and Equipment
► Overview of Proposal
► Projected Schedule
► Appendix

2

# Sector Background

► Kraft Pulp Mill NSPS Review (subpart BB)

► 

# Consent decree deadline

• Proposal

- May 15, 2013

• Final

- March 14, 2014



# ► Pulp and Paper Making RTR NESHAP (subpart S) was promulgated in September 2012

► 

# Currently considering petition for reconsideration



# ► Remaining Sector Activities

► 

# Chemical Recovery RTR NESHAP (subpart MM)

► 

# Unregulated emission points

► 

# Excess emission allowances

► 

# May establish limits for other pollutants

3

# Lawsuit History

4 

# ► Petition of Intent to Sue

► December 6, 2011
► Center for Biological Diversity, Greenpeace, and Port Townsend Airwatchers


# ► Consent Decree

► Signed January 2, 2103
► Proposal deadline: May 15, 2013
► Final deadline: March 14, 2014
► Does not comment on content of rule, only agrees to mandatory review

# NSPS Regulated Emission Points

5 ChipsDigester

Pulp & Black Liquor

Washers

Evaporators (Tall Oil)

Recovery Furnace /

Smelt Dissolving

Tank Caustic Plant Lime CaO

Lime Kiln

Lime Mud CaCO 3 Green Liquor Na 2 S, Na 2 CO 3 Strong Black Liquor Weak Black Liquor Wash Water

Pulp to screens and

cleaners White Liquor Na 2 S, NaOH 

## Subpart S Subpart MM NSPS 

# ► NSPS regulates emission points that overlap with 2 NESHAPs:

► 

# Digester system

► 

# Brown stock washers

► 

# Evaporators

► 

# Condensate stripper system

► 

# Recovery furnace

► 

# Smelt dissolving tank

► 

# Lime kiln

# Overview of Emissions and Equipment

6 

# ► 98 Kraft pulp mills
► N ationwide emissions from Kraft Pulp Mill NSPS combustion

sources

► 

# 21,600 tpy PM

► 

# 3,770 tpy Total Reduced Sulfur*

* Total Reduced Sulfur (TRS) includes hydrogen sulfide, methyl mercaptan, dimethyl sulfide, dimethyl disulfide

# Overview of Proposal

7 

# ► Affected source projections
► Determine historical number of units subject to NSPS
► Technology review
► Review ICR data
► Continuous monitoring data
► Analyze data for opacity and TRS
► Analyze monitoring allowances
► Stack test data
► Analyze data for PM
► Monitoring and record keeping requirements

# Projected Schedule

► Proposal Package to OMB (30

- day) April 14, 2013

► Proposal Signature (court

- ordered) May 15, 2013

► Final Signature (court

- ordered) March 14, 2014

8

# Appendix

9

# Current NSPS Emission Limits

10 Affected Sources Particulate Matter (PM) Total Reduced Sulfur (TRS)

Digester System

NA - Combust in lime kiln

- Combust in RF subject to PM limit

- Combust in incinerator , LK/RF not subject to BB at 650 o C (1200 o F) for 0.5 sec

- Other

- control less than 5 ppm by vol.

dry ( no correction)

- Exempt system

- Uncontrolled digester < 0.005 g/kg ADP Brown stock washers

Evaporators

Condensate Stripper System

Recovery Furnace 0.10 g/dscm (0.044 gr/dscf ) @ 8% O2 35 % opacity ( 6% Emission Allowance for Opacity ) straight

– 5 ppm @ 8% O2

cross

- 25 ppm @ 8% O2 (1 % Excess Emission Allowance)

Smelt Dissolving Tank 0.1 g/kg BLS dry weight (0.2 lb/ton) 0.016 g/kg BLS as H2S (0.033 lb/ton)

Lime Kiln gas fired

- 0.15 g/dscm (0.066 gr/dscf ) @ 10% O2 liquid fired

- 0.30 g/dscm (0.13 gr/dscf ) @ 10% O2 8ppm @ 10% O2Logs Debarking Drum Chipper & Screens

ChipsDigester

Pulp & Black Liquor

Washers

Evaporators (Tall Oil)

Recovery

Boiler/ Smelt Dissolving

Tank Caustic

Plant Lime CaO



### Lime Kiln

Lime Mud

CaCO 3 Green Liquor Na 2 S, Na 2 CO 3 Strong Black Liquor Weak Black Liquor Wash Water

Pulp

Screens & Cleaners Brown

Pulp Storage

Bleached Pulp Storage Bleach

Plant Wash Water 

### Subpart S Subpart MM Boiler MACT NSPS Power Boiler

Bark Steam

White Liquor Na 2 S, NaOH

Paper

Paper Machine Refiners

Additives

Paper Making Slurry

To Converting Waste Water

Treatment To River Water From Process

Sludge (bleached product)

Oil Coal

Screens & Cleaners



# KRAFT PROCESS 11