Methyl Ethyl Ketone is one of the top 100 chemicals produced worldwide due to its high demand and versatility of end use. This article will analyze and compare the production processes of methyl ethyl ketone using patent-protected methods of two of the industry's chemical manufacturing leaders, Maruzen Petrochemical Co. and ExxonMobil Corp. Analysis of the two production methods of methyl ethyl ketone will allow us to shed light on the evolution of the production process over time and the impact that these processes have on energy consumption and waste production. By comparing the patent-protected method for producing methyl ethyl ketone from the world's leading methyl ethyl ketone producer, Maruzen Petrochemical Co., with ExxonMobil Corp.'s patented method and the conventional method, we will be able to determine the most favorable process in based on their impact on the environment, turnover times and energy consumption. There are many industries that use methyl ethyl ketone, particularly the automotive, electrical and furniture industries. The main application of methyl ethyl ketone is in the paint and coatings industry, which contributes half of global demand. Methyl ethyl ketone is present in many consumer products available around the world. A couple of consumer products containing methyl ethyl ketone will be selected, the chemical composition of which will be broken down and analyzed to see what role methyl ethyl ketone plays in the composition of the products. Production of methyl ethyl ketone by Maruzen Petrochemical Co. Maruzen Petrochemical Co., headquartered in Tokyo, Japan, is the world leader in the production of methyl ethyl ketone. Maruzen Petrochemical Co.'s patented process for producing methyl ethyl ketone is quite simple with......half of paper......, while Europe and North America don't see much need or growth for methyl ethyl ketone .1 Growth is expected to increase at an average rate of 1.9% over the 4-year period from 2010 to 2014, with the majority of the growth occurring in the Asian market.1 As we progress towards future, it is clear that methyl ethyl ketone will continue to play a key role in the chemical industry. New processes are being developed to produce methyl ethyl ketone in a much safer and faster manner, with less energy consumption and less environmental impact, as exemplified by Maruzen Petrochemical Co.'s patented process. As more and more applications are discovered and uses of methyl ethyl ketone, the demand for the chemical compound will increase and thus inspire chemical manufacturing companies to research and develop new methods and tools to produce methyl ethyl ketone.