6 results about "Chemical process" patented technology

The invention discloses a method for refining rice bran oil by using short distance distillation. The method is implemented by putting crude rice bran oil in a buffer pot directly, transferring into a primary film evaporator by a pump for dehydration and desaeration, performing primary dehydration and desaeration under conditions of temperature being 60-120 DEG C and pressure being negative 0.8MPa to negative 0.95MPa; pumping the dehydrated and desaerated rice bran oil into a secondary short distance evaporator for deacidification with temperature controlled at 100-200 DEG C and pressure at 100-0.1Pa to obtain oleic acid with high acid value and rice bran oil with low acid value. The invention avoids heavy pollution processes of alkali refining and neutralizing chemical process for obtaining soda soap and process discharging waste water of washing when processing rice bran oil, the procedure is simple, high value oleic acid and low acid value rice bran oil can be distilled and separated, and the separation process is a physical process, the rice bran oil has no loss and the yield is very high.

A method and system of for introducing an active material to a chemical process in which a processing element including a passive component and an active element is installed within the system and exposed to a chemical process performed within the system. As the chemical process proceeds, the passive component erodes and thereby exposes the active component embedded therein. The introduction of the active component to the chemical process alters the chemical process.

The invention discloses a heat exchanger for a polypropylene chemical process. The heat exchanger comprises a barrel-shaped shell, wherein both ends of the shell are respectively provided with a pipe plate, a first medium inlet and a first medium outlet are formed in the shell, the first medium inlet and the first medium outlet are respectively positioned at both ends of the shell, and a first medium flow channel is formed by the first medium inlet, a space in the shell and the first medium outlet; a central pipe is fixedly arranged between the two pipe plates in the shell, at least one medium inlet is formed in one pipe plate, at least one medium outlet corresponding to the medium inlet is formed in the other pipe plate, the medium inlet and the medium outlet which correspond to each other are communicated through a spiral pipe, and the spiral pipe is wound on the central pipe. The heat exchange among many kinds of media can be simultaneously realized by the heat exchanger, so as to be adapted to the polypropylene chemical process, so that the size is reduced, the heat-exchanging area is increased, and the cost is lowered.

The invention provides a method for harmlessly treating organic wastewater of quality-based utilization of low-rank coal. The method has the advantages that quality-improved coal prepared by the quality-based utilization process of the low-rank coal is utilized; according to the features to the quality-improved coal is low in water content, few and small in pores and good in hydrophobicity, the quality-improved coal is combined with organic wastewater to prepare coal-water slurry, the prepared coal-water slurry can be used for combustion or prepared into synthetic gas, the organic wastewater is harmlessly treated, organic matter in the organic wastewater is converted into the synthetic gas, the quantity of the coal-water slurry prepared by the organic wastewater is reduced, and the organicwastewater is efficiently treated; the prepared coal-water slurry can be prepared into the synthetic gas through a coal-water slurry gasification process, high temperature in a gasification furnace decompose the organic wastewater into harmless CO, water and H2, water with low COD value (generally COD is not larger than 500mg/l) is obtained, the water can replace fresh water in a chemical process, and good circulation of circulating water is achieved.

The invention discloses a treatment method for gibberellin production wastewater, which belongs to the field of environmental protection wastewater treatment. Treatment devices include: raffinate adjustment tank, coagulation stirring tank, high concentration adjustment tank, reaction sedimentation tank, IC, UASB1, comprehensive adjustment tank, UASB2, A/O, micro oxygen tank, sedimentation tank, contact oxidation tank, sewage Mud pool, filter press, filtrate pool; according to the characteristics of gibberellin production wastewater, the present invention performs separate chemical and biological treatment on high-concentration wastewater, mixes it with low-concentration wastewater, and performs biological treatment and mixing again. Condensation and decolorization reaction, process combination design is reasonable, and the effluent fully complies with the national discharge standard. At the same time, the one-time investment and operating costs are reduced, the quality is stable and reliable, the operation management is flexible and convenient, and the maintenance cost is low. On the one hand, it can minimize the remaining sludge and avoid secondary pollution; on the other hand, it is easy to adjust and operate with the change of water quality. , strong adaptability, energy saving and consumption reduction, and zero pollution emission.

Plant growth and energy storage is supported by complicated bio-electro-chemical processes causing the intake of water and nutrients from the ground. These processes are affected by adaptations such as root structure and genetic characteristics that facilitate a plant species' survival in its native regions. Disclosed are methods for altering the water and nutrient intake through electrical alignment of molecules with dipole characteristics and ionized molecules, and apparatus for performing the disclosed methods. Through the disclosed invention, the capacity of water molecules to interact at an electro-chemical level with soil elements can be increased or reduced to guide absorption-transport activity, facilitating optimal plant growth for agricultural and other purposes.