Fracking: Economics vs Environment: Reducing the environmental footprint of methane from fracking operations #ACSPhilly PRES

To be presented at the American Chemical Society Fall National Meeting in August 2016, Philadelphia, PA ABSTRACT SYMPOSIUM NAME: Fracking: Economics vs Environment-Invited,Oral

ABSTRACT SYMPOSIUM PROGRAM AREA NAME: PRESIDENTIAL

PRESENTATION TYPE: Invited Oral

TITLE: Reducing the environmental footprint of methane from fracking operations

AUTHORS (FIRST NAME, LAST NAME): Jennifer L. Maclachlan1, John N. Driscoll1

INSTITUTIONS (ALL): 1. PID Analyzers, LLC, Sandwich, MA, United States.

ABSTRACT BODY:  Abstract: Shale has become a major source of fuel in the US and that brought a booming economy to a number of states and allowed more gas for industrial usage thereby reducing pollution. With the recent reduction in fuel prices, it may be difficult to make reasonable profits on these operations. There are environmental issues associated with hydraulic fracking including the waste water (chemicals added to keep the pores open and the gas flowing) methane leaks from fractures in the shale, and leaks into the ecosystem (groundwater, marshes, drinking water, etc.). Neighbors are concerned with methane getting into wells, drinking water, and marshes or rivers nearby. To reduce the loss of methane, the leaks have to be found and plugged and nearby aqueous sources have to be tested and monitored. We have developed a portable GC with a flame ionization detector (FID) that weighs about 6 pounds and is easy to use, This can measure ppb levels of methane with a precision of +/- 5%. A head space method will allow the detection of low ppb levels of methane in soil or water, This will allow methane leaks to be found and tracked to their source. If the leaks are found and repaired, it could solve the environmental issues and perhaps allow more methane to be collected.

Analysis of Natural Gas Composition and BTU Content from Fracking Operations

Accepted for presentation at Pittcon 2015

New Orleans, Louisiana

March 8-12 2015

Abstract Number: 1370 - 5

Session 1370 - Advances in Energy Research: From Unconventional Fuels to Solar Energy
Day and Time: Tuesday, March 10, 2015, 03:05 PM
Room 240

Authors: Jack Driscoll and Jennifer Maclachlan, PID Analyzers, LLC

Significant shale deposits exist in 22 states including the Northeast states of Ohio, Pennsylvania, and New York Utah and Wyoming in the West; and gas-producing states such as Texas, Louisiana, Arkansas and Mississippi. The use of horizontal drilling and hydraulic fracking of shale has catapulted the US into the leading producer of natural gas in 2013.  Natural gas is bought or sold based on the quantity of energy delivered. The product of the concentration (determined by gas chromatography) and the heating value (BTU) determines the BTU content of the fuel. Although the natural gas from Marcelis shale is primarily methane, the composition can vary considerably from region to region

Shale gas streams can vary in composition from primarily CH4 to one that can contain heavier HC (to C6+) species. One does need flexibility in a GC and the GC301C with temperature programming does have it. The 301C has dual detectors (FID & TCD), packed and capillary column capability and temperature programming. It has an embedded PC and Windows 7.0 operating system with PeakWorks chromatography control software. It is a compact industrial gas chromatograph in a 19” rack mount or wall mount enclosure. Outputs include RS485, and 4-20 mA. It can be connected to the internet and can be controlled remotely.  For natural gas, the methane content can vary from about 85 to 98 mole %, ethane varies from 1-7%, propane from 0.1 to 6%, nitrogen 0.2 to 6%, carbon dioxide from 0.1 to 1% with the balance of C4 and C5 hydrocarbons at trace levels. The exact composition can significantly change the BTU content. Methods can be stored for different compositions and changed remotely for additional flexibility in fracking operations.

See presentation slides below.

A two day symposium: New opportunities for recovery and conversion of fossil fuels

  New Opportunities for Recovery and Conversion of Fossil Fuels by Jennifer Maclachlan