69results about How to "Short carbonization time" patented technology

The invention discloses a continuous carbonizing treatment process for biomass. Biochar is obtained by carbonizing a biomass raw material; biomass gas which is produced in a carbonizing process is subjected to gas-solid separation at first in a settling chamber and a dust collector, is sprayed in a spraying tower and is separated and purified in a gas-liquid separating tower, so that wood vinegarand tar are separated; part of the purified and separated biomass gas serves as rotary furnace fuel, and surplus biomass gas is supplied to production of soil conditioner carbon fertilizer or domesticfuel. The continuous carbonizing treatment process improves comprehensive utilization of crops and the like, and achieves an important effect on protecting the environment of a producing place, stabilizing agricultural ecological balance, alleviating resource constraints, and promoting income of farmers.

The invention relates to the technical field of biomass utilization, and particularly provides a process of preparing high-quality biomass charcoal for carbon-based fertilizer and co-producing wood vinegar. Multi-pore high-quality biomass charcoal and wood vinegar are obtained by adopting a low and medium-temperature cracking mode. Under an anoxic condition, a biomass raw material is carbonized, so that organic carbon in biomass is retained to the maximum extent; the wood vinegar is operated through phase separation of spraying liquid, so that energy waste and flue gas pollution which are caused by combustion are avoided; the low-concentration wood vinegar is further cyclically used as a spraying agent at the same level for recycling, so that effective components in the wood vinegar can beaccumulated. As the obtained wood vinegar is sprayed to the biomass charcoal, the sterilization and parasite expelling effects of the biomass charcoal can be enhanced, and the biomass charcoal is also entitled with nutritional components.

The invention relates to a carbonizer for continuously synthesizing calcium carbonate and a production method of calcium carbonate, an input port of calcium hydroxide, an input port of carbon dioxide are provided on the body of the carbonizer, a discharge port is provided at the bottom of the carbonizer, the input port of calcium hydroxide and the input port of carbon dioxide are positioned at the top of the carbonizer body, the transverse trays with displacement from each other are uniformly arranged from the lower part to the bottom of two input ports in the body of the carbonizer, a layout of a S shape backflow baffle plate or a snaky shape backflow baffle plate is used between the adjacent trays. The calcium hydroxide slurry is a fluid suspension, and enables an equidirectional flow with carbon dioxide on the transverse trays between the trays, the calcium hydroxide slurry enters to the next tray from an outlet, three phases of gas, liquid and solid phase are reacted to generate precipitated calcium carbonate, the reacted material-carbonized boiled slurry is flowed out from the outlet of lower part of the reactor. The product has the advantages of adjustable particle size, narrow grain size distribution and stable quality, dispersibility, stability and alkali efflorescence are improved; the invention has the advantages of less equipment investment, short reaction time, less energy consumption, low cost, and the product enables continuous production.