Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Rowan University Tackles Challenges of Reducing Carbon Footprint of Drug Manufacturing

22.07.2010
Rowan University faculty and students have teamed with Pfizer Global Engineering and Manufacturing personnel to investigate green approaches to drug manufacture. This is the second time Rowan has partnered with Pfizer to investigate methods to reduce the carbon footprint of pharmaceutical plant operations.

This year, the Rowan team has worked with scientists and engineers from Peapack, N.J., and the Kalamazoo, Mich., plant where drugs such as the widely prescribed SOLU-MEDROL® are made along with other highly specialized medicines.

The Rowan team has been working with several Pfizer personnel, including Frank J. Urbanski (director, Pfizer Global Engineering), Joseph W. Geiger (manager API engineering), and Donald J. Knoechel (senior principal scientist).

The team has collaborated to analyze the economic viability and to quantify the environmental benefits of investing in a small solvent recovery system, as an alternative to incineration, for addressing smaller-volume waste streams. Solvents often represent the primary component of waste from the production of active pharmaceutical ingredients (APIs), used in medicinal formulations.

According to Urbanski, “There are economic and environmental benefits when Pfizer recovers solvent for re-use, especially when expensive solvents and large volumes are involved. Indeed, Pfizer has been recovering solvents for many decades at its various manufacturing facilities. As we seek to improve our conservation efforts and reduce our carbon footprint, one challenge faced is how best to deal with numerous small-volume waste streams from multi-product facilities, when existing solvent recovery equipment may be too large to be practical.”

Solvent recovery is a routine practice in the pharmaceutical industry when it is technically and economically viable for the particular waste stream. Capital investment in the required piping, tank farms and recovery equipment is more easily justified when dealing with large volumes, high-cost solvents and high equipment-utilization rates and when solvents from multiple products can be pooled together – i.e., they don’t require segregation by product. The use of recovered solvents, and the pooling of solvents, must be appropriately qualified to assure product quality and avoid cross contamination. Economic justification to recover small-volume, “non-poolable,” and intermittently generated waste streams remains challenging but a potential recovery opportunity.

Drs. Mariano J. Savelski and C. Stewart Slater, both Rowan chemical engineering professors, are leading this research effort with a team of chemical engineering students: Joseph Hankins (Blairstown, N.J.), Christopher Mazurek (Jackson, N.J.), James Peterson (Jackson, N.J.), Michael Raymond (Burlington Township, N.J.), and Andrew Tomaino (Middleton, N.J.).

The Rowan team performed a case study on several waste streams being generated at an API synthesis building at the Pfizer Kalamazoo plant. The goal was to investigate those streams that could be most easily recovered with traditional separation and purification processes. As a first step in that analysis, the recovery of acetonitrile solvent from a waste stream in the selamectin synthesis was considered. Selamectin is the active ingredient in the veterinary drug REVOLUTION®. This stream was initially chosen due to the relative high cost (and value) of acetonitrile and the ability to separate acetonitrile from acetone.

Rowan designed a small-scale distillation, solvent-recovery system, and the proposed operation compared with the current waste-disposal practice. To increase the economic feasibility of a potential capital investment and improve the environmental footprint further, the Rowan team evaluated the proposed design for use with the other waste streams in the facility. The simulation included isopropanol solvent recovery from the manufacture of nelfinavir, the active ingredient in the antiretroviral drug VIRACEPT®, used in the treatment of the human immunodeficiency virus (HIV). The study also examined toluene recovery from hydrocortisone manufacture (used in several drug products for relief of inflammation).

“The case study estimates the environmental impacts and economics, using life-cycle assessment, associated with the proposed improvement using various computer routines,” Savelski said.

Knoechel said, “From a plant perspective, the Rowan team has given us some valuable estimates to use in evaluating our solvent use and disposal practices. The team’s unique life-cycle assessment capability helps us understand where we can have the most impact on reducing our greenhouse gas emissions.”

The case study for the three drugs showed that 732,000 kg/yr of life cycle emissions, of which 677,000 kg/yr are CO2, could be reduced through using the solvent recovery system. This results from not having to manufacture the virgin solvent as well as from a reduction in waste disposal. The study also projects significant operating cost benefit. The CO2 reductions are equivalent to the amount of emissions saved by not driving cars 1.4 million miles in a year.

The Rowan group presented its work at the 14th Green Chemistry and Engineering Conference in Washington, D.C., in June.

Both Pfizer and Rowan recently have been recognized for their green chemistry and engineering achievements. Pfizer’s La Jolla (Calif.) research and development facility won a Clean Air Champions award from the County of San Diego in 2009. Rowan’s Savelski and Slater won the EPA’s Environmental Quality Award in 2009 for their efforts in educating both academia and industry in the field of green engineering. Rowan University’s prior work with Pfizer resulted in recommendations to improve the solvent-recovery operations in the manufacture of celecoxib, the active ingredient in the arthritis pain medication CELEBREX®.

Pfizer and Rowan continue to discuss further green engineering partnerships.

*Celebrex®, Revolution®, Solu-Medrol® and Viracept® are registered trademarks of Pfizer Inc. and its affiliated companies

Patricia Quigley | Newswise Science News
Further information:
http://www.rowan.edu

More articles from Life Sciences:

nachricht Rainbow colors reveal cell history: Uncovering β-cell heterogeneity
22.09.2017 | DFG-Forschungszentrum für Regenerative Therapien TU Dresden

nachricht The pyrenoid is a carbon-fixing liquid droplet
22.09.2017 | Max-Planck-Institut für Biochemie

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: The pyrenoid is a carbon-fixing liquid droplet

Plants and algae use the enzyme Rubisco to fix carbon dioxide, removing it from the atmosphere and converting it into biomass. Algae have figured out a way to increase the efficiency of carbon fixation. They gather most of their Rubisco into a ball-shaped microcompartment called the pyrenoid, which they flood with a high local concentration of carbon dioxide. A team of scientists at Princeton University, the Carnegie Institution for Science, Stanford University and the Max Plank Institute of Biochemistry have unravelled the mysteries of how the pyrenoid is assembled. These insights can help to engineer crops that remove more carbon dioxide from the atmosphere while producing more food.

A warming planet

Im Focus: Highly precise wiring in the Cerebral Cortex

Our brains house extremely complex neuronal circuits, whose detailed structures are still largely unknown. This is especially true for the so-called cerebral cortex of mammals, where among other things vision, thoughts or spatial orientation are being computed. Here the rules by which nerve cells are connected to each other are only partly understood. A team of scientists around Moritz Helmstaedter at the Frankfiurt Max Planck Institute for Brain Research and Helene Schmidt (Humboldt University in Berlin) have now discovered a surprisingly precise nerve cell connectivity pattern in the part of the cerebral cortex that is responsible for orienting the individual animal or human in space.

The researchers report online in Nature (Schmidt et al., 2017. Axonal synapse sorting in medial entorhinal cortex, DOI: 10.1038/nature24005) that synapses in...

Im Focus: Tiny lasers from a gallery of whispers

New technique promises tunable laser devices

Whispering gallery mode (WGM) resonators are used to make tiny micro-lasers, sensors, switches, routers and other devices. These tiny structures rely on a...

Im Focus: Ultrafast snapshots of relaxing electrons in solids

Using ultrafast flashes of laser and x-ray radiation, scientists at the Max Planck Institute of Quantum Optics (Garching, Germany) took snapshots of the briefest electron motion inside a solid material to date. The electron motion lasted only 750 billionths of the billionth of a second before it fainted, setting a new record of human capability to capture ultrafast processes inside solids!

When x-rays shine onto solid materials or large molecules, an electron is pushed away from its original place near the nucleus of the atom, leaving a hole...

Im Focus: Quantum Sensors Decipher Magnetic Ordering in a New Semiconducting Material

For the first time, physicists have successfully imaged spiral magnetic ordering in a multiferroic material. These materials are considered highly promising candidates for future data storage media. The researchers were able to prove their findings using unique quantum sensors that were developed at Basel University and that can analyze electromagnetic fields on the nanometer scale. The results – obtained by scientists from the University of Basel’s Department of Physics, the Swiss Nanoscience Institute, the University of Montpellier and several laboratories from University Paris-Saclay – were recently published in the journal Nature.

Multiferroics are materials that simultaneously react to electric and magnetic fields. These two properties are rarely found together, and their combined...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

“Lasers in Composites Symposium” in Aachen – from Science to Application

19.09.2017 | Event News

I-ESA 2018 – Call for Papers

12.09.2017 | Event News

EMBO at Basel Life, a new conference on current and emerging life science research

06.09.2017 | Event News

 
Latest News

Rainbow colors reveal cell history: Uncovering β-cell heterogeneity

22.09.2017 | Life Sciences

Penn first in world to treat patient with new radiation technology

22.09.2017 | Medical Engineering

Calculating quietness

22.09.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>