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 Emission Points

► 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

Chips

Digester

Pulp & Black 

Liquor

Washers

Evaporators

(Tall Oil)

Recovery 

Furnace /

Smelt 

Dissolving 

Tank

Caustic Plant

Lime

CaO

Lime Kiln

Lime Mud 

CaCO3

Green Liquor

Na2S, Na2CO3 Strong Black 

Liquor

Weak 

Black Liquor

Wash Water

Pulp to 

screens and 

cleaners

White Liquor

Na2S, 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

► Nationwide 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 650o

C (1200oF) 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% O2
Logs

Debarking 

Drum

Chipper & 

Screens

Chips Digester

Pulp & Black 

Liquor

Washers

Evaporators

(Tall Oil)

Recovery 

Boiler/

Smelt 

Dissolving 

Tank

Caustic 

Plant

Lime

CaO

Lime Kiln

Lime Mud 

CaCO3

Green Liquor

Na2S, Na2CO3 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

Na2S, 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