The extraction of fiber from plants for papermaking usually uses the "acid-base method", which will produce a large amount of alkaline "black liquor", posing a serious threat to the environment. A few days ago, Beijing Menghu Yutong Bamboo Fiber Center developed the "Green Energy Biomass Organic Components Separation and Extraction" technology, which passed the results appraisal meeting organized by China High-tech Industrialization Research Association. Ding Fuchen, chairman of the appraisal committee and a professor at the Beijing Institute of Petrochemical Technology, said that the process technology is "zero pollution, zero emissions", high utilization rate, and the comprehensive level reaches international advanced.
It is reported that the technology of "separation and extraction of organic components of green energy biomass" was developed to solve the problem of low strength of bamboo fiber and heavy pollution during extraction. The technology does not use water and uses a mixed catalytic solvent, which can be used for only 30 minutes to 2 hours Effective separation of all woody and herbaceous biomass.
Ding Fuchen said that the newly developed composite organic solvent system containing catalyst and the new process technology for separation and extraction of organic components of biomass can separate and extract cellulose, hemicellulose and lignin in biomass; high utilization rate of raw materials and recyclable solvent 3. Low water consumption, low comprehensive energy consumption; no waste liquid, waste gas, waste residue, environmental protection in production process, low equipment investment; the separation and extraction of "three elements" products have high yield and high purity, and the product quality has been tested to meet relevant standards.
Beijing Menghu Yutong Bamboo Fiber Research and Development Center Zhang Ziyu said that the use of new technology to separate and extract new high-purity lignin, because of the unique process, physical properties have not been destroyed, can be extended to develop a wide range of high-tech product groups, involving aerospace, military , Solar energy, microelectronics and other fields; lignin can also become an almost inexhaustible biomass renewable energy and resource; extracted cellulose can be used as textile raw materials, pulp and building materials industry, hemicellulose (poly Pentose) is an important raw material for medicine, food and chemicals.
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