4 results about "Steam pyrolysis" patented technology

The processes disclosed herein are environmentally friendly technologies to produce biocarbon products with low water intensity as well as low carbon intensity. Some variations provide a low-water-intensity process for producing a biocarbon product, comprising: providing a starting feedstock comprising biomass and water; drying the starting feedstock to generate a dried feedstock and a first vapor; pyrolyzing the dried feedstock to generate hot solids and a second vapor; condensing the first vapor to generate a first condensed liquid having a first pH from about 1 to about 7; condensing the second vapor to generate a second condensed liquid having a second pH from about 1 to about 7; forming acid water comprising the first condensed liquid, the second condensed liquid, or a mixture thereof; washing and cooling the hot solids using the acid water, to generate washed, cooled solids; and recovering the washed, cooled solids as a low-water-intensity biocarbon product.

This utility model discloses a cooling and recovery mechanism for a steam pyrolysis furnace, comprising: a processing system; a condenser connected to the processing system; a coolant circulation system connected to the condenser; a gas-liquid separator connected to the condenser; and a liquid storage tank connected to the gas-liquid separator. This cooling and recovery mechanism can treat the gas generated by the steam pyrolysis furnace, removing tar and chlorides, and recovering water and oil, thus protecting the environment and conserving resources.

This invention belongs to the field of carbon fiber composite material recycling, and provides a recycling process for carbon fiber composite materials using molten salt-assisted steam pyrolysis, comprising three stages: molten salt treatment, steam pyrolysis, and post-treatment. Through a synergistic mechanism of "efficient resin decomposition by molten salt and surface residue cleaning by steam," the process achieves deep resin pyrolysis while simultaneously recovering pyrolysis products and efficiently recycling high-performance carbon fibers for reuse. This significantly improves the purity and interfacial properties of recycled carbon fibers, reduces energy consumption and secondary pollution, and is particularly suitable for the green recycling of composite materials with high cross-linking density or special coatings, providing an efficient and clean solution for the circular economy of composite materials.

A system for steam cracking a whole crude that may include a volatilization device, a control system, a separator, and a steam pyrolysis reactor. The volatilization device may be configured to separate a vapor phase from a liquid phase. The control system may be configured to maintain a flow rate of the whole crude and steam, at an initial relative velocity of less than 30 m / s. The separator may be fluidly connected to the volatilization device and configured to separate the liquid phase into a second vapor phase, and a second liquid phase. The steam pyrolysis reactor may include a convection section and a steam pyrolysis heater section, the convection section configured to heat the vapor phase, the liquid phase, and the second vapor phase, and the steam pyrolysis heater section configured to steam crack hydrocarbons in the vapor phase thereby generating a cracked hydrocarbon product.