Biofuel - Energy supplier of the future?

Fritsch GmbH - Milling and Sizing
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However, in the past months and years biofuels had the reputation to generate a social- und environmental dilemma.

For the production of the second generation bio fuels not the starch respectively oil containing plant parts are used, but rather only the cellulose-containing parts of the plant. This means the starch containing plant parts, like for example the maize kernels, can still be used for the production of food.

Bio ethanol is produced and obtained via bio catalysis (fermentation) and bio process technology. In order to run such well-engineered bio process technology plants, as a rule, a preparation of the lignocellulose containing residual material is required. Not only the degree of the comminution (particle size) due to the installed technical components of the plant and the built-in measurement instrumentation and control systems play a part, but rather what seems even more important is the produced by the comminution high surface and the associated residence time and fermentation period in the bio-fermenter. Hereby the used micro organisms and enzymes are given the opportunity in a time- and resource saving approach to achieve the highest possible plant effectiveness.

For the comminution of the residual plant matter in many pilot plant stations and pilot installations FRITSCH Cutting Mills are utilized. Here especially the Universal Cutting Mill PULVERISETTE 19 in combination with the sample exhauster the cyclone separator.

Advantages of this system are: easiest handling during cleaning and the exchange of the cutting tools. Due to the patented FRITSCH sample exhauster it is possible to produce sufficiently large amounts of bio mass with a particle size distribution from up to smaller than 250 µm, which then can be transferred to the fermentation plants without any problems. The directed high volume air current of the FRITSCH patented sample exhauster of 2800 l/min minimises thermal load during the grinding process and is a secure protection against clogging of the sieve cassettes und enables therefore a high sample throughput.

Biofuel - Energy supplier of the future?

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