Ethanol can be made from any crop or plant that contains a large amount of sugar or components that can be converted into sugar, such as starch or cellulose.
As their names imply, sugar beets and sugar cane contain natural sugar. Crops such as corn, wheat and barley contain starch that can be easily converted to sugar. Most trees and grasses are made of cellulose, which can also be converted into sugar, although not as easily as starch.
Most ethanol is produced using a four-step process:
• The ethanol feedstock (crops or plants) are ground up for easier processing;
• Sugar is dissolved from the ground material, or the starch or cellulose is converted into sugar;
• Microbes feed on the sugar, producing ethanol and carbon dioxide as byproducts; and
• The ethanol is purified to achieve the correct concentration.
It is also possible to produce ethanol through a wet-milling process, which is used by many large ethanol producers. This process also yields byproducts such as high-fructose corn syrup, which is used as a sweetener in many prepared foods.
This was the question often raised due to a long history of many failed attempts to concentrate the spent wash. The main reasons of failure were the parameters refer to in earlier question were totally ignored apart from the fact the evaporators designed then were not made by Evaporator manufacturers with extensive experience on handling diverse type of liquids. Mojj by virtue of having extensive professional experience in evaporation of many zero discharge plants for Pharmaceutical and chemical industries and having experience on evaporation of many valuable pure substances could design and successfully implement evaporation in the first plant.
This question can precisely only be answered country by country. In the EU and in most member countries to the WTO the installation and operation of a pub brewery is possible without special government approvals. But certain special/deviating regulations may have to be noticed.
In most other countries it is allowed for hotels/restaurants based on an individual government approval.
This question was always raised to our first customer by the competition as they could not do the same to create fear and divert the order to them at the same old technology. This question is not raised now but now they are also claiming they can also offer the same. The interpretation of integration is use of stand alone evaporator .The main points claimed and proved by us of reducing steam consumption drastically and absolutely no CIP requirement is not achieved by any competitor.
