REM TECHNOLOGY INC.REM TECHNOLOGY INC.



# Reducing Methane and VOC Emissions

Jimmy Oxford – Targa Resources

Veronica Nasser - REM Technology Inc.

Presentation for the 2012 Natural Gas STAR Annual Implementation WorkshopREM TECHNOLOGY INC.



# Why Reduce Methane and VOC Emissions?

VOCs are a precursor to local ozone
Regulated



### Methane is a potent green

- house gas

21 times that of CO 2



### VOCs may contain BTEXs which are carcinogenic

Methane and VOC venting is a loss
Energy

EconomicREM TECHNOLOGY INC.



# Vented Gases – Destroying and/or Using

• Burning gas in flares

o Needs a pilot flame or automatic ignition

o Produces no useful energy

o Restricted in some jurisdictions

• Recompression (VRU)

o Needs specialized equipment

o Costly for small releases

• Addition to engine fuel (SlipStream ® technology)

o No gas compression required

o Displaces engine fuel

o High methane and VOC destruction ratio

o Can deal with variable releases

o Measures and records vented amountsREM TECHNOLOGY INC.


# SlipStream ® 

# Technology †



# No pressurization or recompression required

Vent gases pass through a valve train and specially designed low

loss demister Vented gas enters intake air after the engine air filter Minimal increase in vent system pressure (< 0.2 psig) 

# Accommodates rapid flow changes

Controller makes adjustments Controller prevents excessively high flows 

# High VOC and methane destruction factor

† Patented; other patents pendingREM TECHNOLOGY INC. 

# Efficiency of Destruction

An internal combustion engine is very efficient in combusting fuel

VOC destruction > 99%

For most systems the added fuel is < 10% of engine fuel

Advanced systems take up to 50% of engine fuel

No catalyst fouling Air

Vented Methane and/or VOCs

Natural gas fuel Natural Gas Reciprocating Engine Load Catalyst Filter

Demister SlipStream Control SystemREM TECHNOLOGY INC.


# Compressor Packing Gases

Problem:
All reciprocating compressor rod packing glands leak

Solution:
 Collect and use all of the packing vent gas – as supplemental fuel
 Monitor and record flow rate with a thermo mass flow meter
 Take corrective action when packing vent flow rate alarms at high flow 

# • Most leak at a low rate, but a few leak at a high rateREM TECHNOLOGY INC.



### n SlipStream ® 

### SA – Installation o Compressor Pressure Packing Vent

The following slides illustrate how vented hydrocarbons/VOC’s are captured in a compressor pressure packing vent application.REM TECHNOLOGY INC.



## How is pressure packing vented emissions captured ?

Common
header in most
cases vents to atmosphereREM TECHNOLOGY INC.

Engine air intake duct 

# Compressor Packing Gases

SlipStream ® Control System Pipe from compressor cylinder packing vents

Gas composition:

• 43% methane

• 16% ethane

• 41% VOCREM TECHNOLOGY INC.



## How are pressure packing vented emissions captured ?

Common header to Outside of building. SlipStream

Manifold
Is tied in.REM TECHNOLOGY INC. 

# SlipStream SA from Packing Vents
to Air Intake Line to Air Intake After air Filter, before
Turbo Flow rate entering air

intake lineREM TECHNOLOGY INC.



## SlipStream Panel with additional REMonitor Features

Valve train In backgroundREM TECHNOLOGY INC.



## SlipStream **®** 

## SA Environmental Benefits
and Fuel Cost Savings

Based on $3.85/ mcf and flow rate at time of snap shop

CO2(e)

Flow rate at time of snap shot Flow rate fluctuates
with RPM Actual totals

Actual Fuel gas savings to Date of snap shotREM TECHNOLOGY INC.


# Alarm Settings and Benefits

Flow rate is continuously measured A high flow rate alarm is set at 6 SCFM, (customer specified), to

no t ify operators when pressure packing leak rate increases.

This allows for scheduled maintenance to be performed,
po ssi bly at time when other maintenance tasks are due. Unscheduled down time, and lost production is avoided.

Vented hydrocarbons are eliminated and compliance is meet at
al l times. The vented hydrocarbons are used as supplemental fuel. The entire time the pressure packing is leaking, SlipStream is capturing and burning in the engine as fuel.REM TECHNOLOGY INC.

SlipStream ® Control System 

# Gas Boil

- off from Liquids Tanks

Liquids tanks Boil- off gas collection pipe

Boil

- off gas has high VOC content Turbo

charger

Gas from SlipStream control system added to engine intake air – max is < 10% of total engine fuel Engine air intake and filterREM TECHNOLOGY INC. 

# SlipStream **®** 

# SA on CAT 3516LE

3” line to SlipStream SlipStream
PanelREM TECHNOLOGY INC.



# Regulations

Accepted as a VOC destruction method by many states air quality regulators

Meets Class I Div 2 Hazardous area regulations

Can be used as an alternative method to packing change out at regular intervals

Accepted for green

- house gas credi ts (Canada)REM TECHNOLOGY INC. 

# Re-Cap

SlipStream ® 

## : Efficiently destroys vented methane and VOCs

Deals with various vent sources

Provides continuous and accurate measurement of vented f low No need for recompression Reduces engine fuel needs Is field proven for many different sources

Is safe and reliableREM TECHNOLOGY INC.



# QUESTIONS ? 

# Thank You