Straw gas purification method
The combustible gas generated from the straw gasifier is called straw gas, contains impurities, and the temperature is too high to be directly used by the user. The impurities in straw gas are mainly ash, fine carbon particles, tar and moisture. These impurities have a great impact on the use of straw gas, especially tar, the hazards are as follows: (1) Tar accounts for about 5% of the total energy of straw gas. When the straw gas is cooled and cooled, it is difficult for tar to be combusted and utilized along with the straw gas. (2) The tar in the straw gas condenses at a low temperature and easily combines with water, carbon particles, ash and other impurities, blocks the gas pipeline, jams the valve, the rotor of the pump, and corrodes the metal. (3) It is difficult for tar to burn completely, and carbon black and other aggregates are produced. The damage to straw gas utilization equipment such as internal combustion engines and gas turbines is quite serious. (4) Tar and its odor after combustion are harmful to the human body. Because the impurities in the straw gas are diverse and complex, it is impossible to use a single method to purify the straw. Usually several purification methods are used together. The main purpose of the purification of straw gas is to remove ash, carbon particles, moisture, tar and cooling, and the technology used is also aimed at these aspects. 1. Dust removal from dust-removing straw gas is mainly to remove ash and fine carbon particles remaining in the straw gas. There are usually two methods used: dry dust removal and wet dust removal. (1) Dry dust removal. Filtration dust removal uses a porous body to remove dispersed solid particles from the gas. Filtration and dust removal can effectively trap 1~0.1 micron particles, which is the most efficient and stable one among various separation methods. However, the filter speed cannot be high, the equipment is large, and it is difficult to discharge the dust. Filters are generally used for final separation. (2) Wet dust removal. The Chinese herbal medicine extracts Raw Material supplier and manufacturer -- Organic Herb Inc is a China-based company which is committed to producing , developing and exploring straight herbal powder ,plant extracts, nutraceutical ingredients, effective components of Chinese herbs and related products for the pharmaceuticals, beverage , health food and cosmetics industries.OHI follow the c-GMPs for herbal raw material and Straight Powder and we pledge that we will always uphold the highest standards of safety for our customers around the world with competitive market prices. OHI obtains straight powder from organic plant source through the highest standard of manufacture process , so that every one of our powder provides the most nutrients possible. Raw Material / Straight Powder Raw Material,Straight Powder,Ginseng Straight Powder,Extract Powder Raw Materials Organic Herb Inc. , https://www.extracts.pl
Straw gas purification method
Dry dust removal is characterized by the separation of dust from the straw gas, maintaining the original temperature and keeping it dry, not mixed with moisture. Dry dust removal is divided into mechanical dust removal and filter dust removal. Mechanical dedusting is the use of inertial effects to separate the particles from the gas stream. The minimum particle size of the dedusting powder is 5 microns. The most common is a cyclone dust collector.
Wet dedusting is the use of liquid (usually water) as a collector to trap the impurities in the gas. When the gas flows through the liquid layer, liquid film or liquid droplets, the particles in the liquid are adhered to the liquid. separate from. Common equipment includes bubble columns, spray towers, packed towers, venturi scrubbers, etc.