Key Technologies and Benefits

Kurita’s Process Technologies team supports the fuel ethanol industry with innovative chemistries designed to reduce air pollution, prevent deposits, prevent corrosion, and enhance fermentation and corn oil recovery, in order to improve fuel ethanol manufacturer profitability. Kurita’s flexible approach to remotely monitoring and analyzing operational data brings additional value to plant operations, as operators are engaged with Kurita 24/7 to mitigate risks that could lead to unexpected downtime.

Yeast health suffers when bacterial infections consume sugar meant to feed yeast and generate organic acids that stress yeast. Unhealthy yeast results in a decreased ethanol yield. Kurita provides two popular antibiotics, penicillin and virginiamycin, with full technical support and competitive pricing.

The ProClean product line offers alternatives and additives designed to enhance the evaporator and other back-end CIP processes. These products are regularly used to supplement current CIP programs and provide optimum results, returning contacted surfaces back to “like new” bare metal. We have documented excellent results utilizing ProClean 335/345/336 and ProClean 815 products in evaporator CIP events. As with all application recommendations, a firm understanding of the process and nature of the fouling supports the development of a CIP protocol to produce the best site-specific results. ProClean 335/345/336 products “prepare” the deposit for the caustic CIP cycle. ProClean 815 is an additive to the caustic cycle that greatly enhances effectiveness. At the recommended usage rates, these products are acceptable for use in regulated ethanol plants.

These products will not unplug tubes or lines, but when added to a fouled system -combined with proper time, temperature and agitation – the following benefits can be realized:

  • Reduction in CIP events leading to savings in chemicals like caustic and sulfamic acid.
  • Improved water balance across the process
  • Increased effectiveness of CIP events
  • Reduction in hydro-blasting events.
  • Reduction in acid usage between CIP events.
  • Reduced energy consumption, due to cleaner tube surfaces

CorrPro is a family of final product corrosion inhibitors with enhanced corrosion, handling and pHe buffering properties.

As many ethanol producers are investing in corn oil recovery (COR) equipment platforms, COR additives are found to be a cost-efficient means of aiding mechanical separation/recovery and increasing overall COR yield. The portfolio of COR line of corn oil recovery products is designed to provide the right product for the plant-specific COR platform and operating conditions. The products are easy-to-feed liquids available in either tote or bulk delivery quantities and come with a self-contained chemical metering skid.

Developed specifically for the biofuels industry, Kurita’s patented pHytOUT technology is a liquid deposit control inhibitor that is typically added to the fermenters. This easy to feed chemistry can reduce an ethanol plants dependency upon sulfuric acid while providing an overall process fouling inhibitor package.

The ProHib product line is comprised of scale inhibitors designed to prevent deposit formation in evaporators across a broad spectrum of foulants – including Oxalates, Carbonates, and Magnesium Phosphate deposits. Upon plant operating data review by Process Technologies personnel, ProHib recommendations are based on a firm understanding of the fouling tendencies specific to each facility.

Kurita has a complete line of Food Grade antifoams acceptable for use in Fuel Ethanol production.

VOxOUT 70C is a “fermentation friendly” CO2 scrubber chemical additive treatment designed to enable a plant’s ability to meet Hazardous Air Pollutants (HAPs) when unable to meet compliance via mechanical scrubbing alone. VOxOUT 70C replaces the sodium bisulfite with ammonium bisulfite and a proprietary catalyst that results in a quicker and more complete conversion of the acetaldehyde resulting in significantly lower bisulfites being sent to fermentation.

Process Flow and Solutions

Cooling Tower

Cooling Tower

Maximize heat transfer efficiencies through the inhibition of deposition, corrosion, and microbiological activity. In addition to preventing deposits and corrosion, Kurita’s programs and services lower operating costs through the reduction of water and chemical use. Get more information about our services and applications. 

Fermentation

Fermentation

Support up-time production and decrease risk of infection through process-side deposit control and enhanced CIP offerings, and anti-microbial offerings.

CO2 Scrubber

CO2 Scrubber

We offer scrubber management programs that enable compliance, reduce bisulfite contribution, and promote healthier yeast.

Evaporators

Evaporators

Kurita lowers natural gas use by inhibiting the formation of deposits. We also promote up-time production by increasing the interval between CIPs.

Oil Recovery

Oil Recovery

Kurita enhances yield via additives that provide lowest cost/performance options to optimize distillers oil recovery and enhance the quality of recovered oil.

Distiller Grains

Distiller Grains

We help improve final co-product quality through enabling technologies that reduce the dependence on sulfric acid and related sulfur contributions assuring consistent product quality.

Boiler

Boiler

Maximize heat transfer efficiencies through the inhibition of corrosion, deposit formation, and operations tuning. Our programs and services help lower operating costs and meet emissions compliance by reducing natural gas, chemical, and water use. Get more information about our products and services. 

Final product

Final Product

Kurita’s Ethanol Final Filter is designed to improve final fuel
quality by removing both existent and potential sulfate, as well as,
addressing issues regarding color, turbidity, acidity, pHe, chloride
and iron. The Ethanol FInal Filter can be used as a mobile unit or as
a permanent unit.

Raw water pretreatment

Raw water pretreatment

Kurita removes impurities from the source water that can adversely affect heat transfer, capital equipment integrity, and process efficiencies. We offer programs and services designed to lower water, natural gas, and chemical use to positively impact your bottom line. Get more information about our products and services. 

Heat exchanger and distillation

Heat exchanger and distillation

Kurita can help you reduce fouling and provide cleaner heat transfer surfaces with deposit control programs that lower natural gas and chemical use, extend time between CIPs, and increase production rate and up-time.

Denatured ethanol storage

Denatured ethanol storage

Kurita’s products and services help you maintain product consistency by ensuring corrosion inhibition standards are met and addressing potential acidityand pHe issues that could impact final product quality

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