Siemens and LanzaTech Partner to Transform Steel Mill Off-Gases Into Bioethanol

Siemens and LanzaTech Partner to Transform Steel Mill Off-Gases Into Bioethanol 
ROSELLE, IL and MUNICH, GERMANY -- (Marketwired) -- 06/19/13 -- 

--  Biological fermentation process converts CO and CO2 into bioethanol
    and platform chemicals
--  Process uses energy contained in steel plant off-gases
--  Ten-year co-operation to develop and market integrated environmental
    solutions for the steel industry worldwide

Siemens Metals Technologies and LanzaTech have signed a ten-year
co-operation agreement to develop and market integrated environmental
solutions for the steel industry worldwide. The collaboration will
utilize the ground-breaking fermentation technology developed by
LanzaTech transforming carbon-rich off-gases generated by the steel
industry into low carbon bioethanol and other platform chemicals.
Siemens and LanzaTech will work together on process integration and
optimization, and on the marketing and realization of customer
Off-gases from the production of iron and steel contain significant
amounts of carbon monoxide (CO) and carbon dioxide (CO2). Globally,
the iron and steel industry contributes 6.7 percent to the worldwide
CO2 emissions. To produce one metric ton of steel, an average of 1.8
metric tons of carbon dioxide (CO2) is emitted. Up to now, these
gases have been flared or used to create process heat and electrical
energy within the plant.  
LanzaTech's innovative technology, instead, re-uses the off-gases
from converter, coking plant or blast furnace processes as nutrients
and a source of energy. The patented biological fermentation process
allows steel plant operators to make use of the chemical energy
contained in off-gases in the form of CO, CO2 and H2 (hydrogen) for
the eco-friendly production of bioethanol or other basic chemicals
such as acetic acid, acetone, isopropanol, n-butanol or
The global market for ethanol alone is estimated to amount to an
annual volume of over 80 million metric tons, of which 75 million
metric tons is used as biofuel. Unlike the bioethanol produced
through agriculture, LanzaTech's fermentation process does not
compete with food production.  
Another major benefit of this technology is that the CO2 emissions
("carbon footprint") are between 50 to 70 percent lower than
petroleum-based fuels and around one-third lower than when steel
plant off-gases are converted into electricity. 
LanzaTech has been operating a pilot plant in Auckland, New Zealand
since 2008 utilizing raw steel mill gases. In 2012, LanzaTech became
the first company ever to scale gas fermentation technology to a
pre-commercial level, developing and successfully operating two
facilities converting flue gas from Baosteel and Shougang steel
plants into ethanol, each at an annualized capacity of 300 tons.
LanzaTech is now planning to begin construction on two commercial
facilities in China in 2013 with production expected in 2014. Siemens
and LanzaTech are already pursuing several commercial gas
fermentation project opportunities around the world.  
"Global demand for affordable and sustainable energy has never been
stronger," said Dr Jennifer Holmgren, CEO of LanzaTech. "Carbon
emissions from steel mills can create an important new source of
energy while simultaneously reducing emissions. We are delighted to
be partnering with Siemens to deliver integrated solutions that
improve the value and environmental footprint of the global steel
"The iron and steel industry currently has to cope with a difficult
market situation. Today, our customers' main goal is not to achieve
new production records, but squeezing operating costs," said Norbert
Petermaier, Senior Vice President at Siemens Metals Technologies. "At
the same time, governments are setting ambitious targets for emission
reductions, in particular with regard to CO2 emissions. That's why
Siemens is concentrating on solutions which will help steel
manufacturers to achieve both goals. LanzaTech's unique CO/CO2
bio-fermentation is exactly such an opportunity and fits perfectly
together with the leading position of Siemens as green solution
provider for the Industry." 
About LanzaTech
 LanzaTech is a leader in gas fermentation
technology. It provides novel and economic routes to low carbon fuels
and high value chemicals from low value residues and off-gas streams.
LanzaTech's unique process provides a sustainable pathway to produce
platform chemicals that serve as building blocks to products that
have become indispensable in our lives such as rubber, plastics,
synthetic fibers and fuels. LanzaTech's technology solutions mitigate
carbon emissions from industry without adversely impacting food or
land security. With two commercial facilities in China slotted for
construction in 2013 and full operation in 2014, LanzaTech, a company
founded in New Zealand, is now a global organization. More
information is available at  
About Siemens Industry Sector
 The Siemens Industry Sector (Erlangen,
Germany) is the world's leading supplier of innovative and
environmentally friendly products and solutions for industrial
customers. With end-to-end automation technology and industrial
software, solid vertical-market expertise, and technology-based
services, the Sector enhances its customers' productivity,
efficiency, and flexibility. With a global workforce of more than
100,000 employees, the Industry Sector comprises the Divisions
Industry Automation, Drive Technologies and Customer Services as well
as the Business Unit Metals Technologies. For more information, visit  
About the Metals Technologies Business Unit
 The Metals Technologies
Business Unit (Linz, Austria), part of the Siemens Industry Sector,
is one of the world's leading life-cycle partners for the metals
industry. The Business Unit offers a comprehensive technology,
modernization, product and service portfolio as well as integrated
automation and environmental solutions covering the entire life cycle
of plants. For more information, visit  
This press release and a press picture is available at 
For further information on solutions for steelworks, rolling mills
and processing lines, please see 
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Contacts for journalists:
Siemens AG, Media Relations
Dr. Rainer Schulze
Phone:+49 9131 7-44544
LanzaTech, Media Relations
John Williams
Scoville PR for LanzaTech
Phone: +1 206 625 0075
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