36results about How to "Efficient cascade utilization" patented technology

The invention discloses a novel distributed energy system of integratedly recycling energy source and resource, comprising solar energy and smoke afterheat compounded methane generating unit, sewage treating unit, and prime mover unit, interconnected, an integrated device for recycling and treating remaining rubbishes in kitchen, dejecta, and domestic sewage, where the medium-grade water from the sewage treating unit and the smoke output from the prime mover unit are connected to a medium-grade water heat pump unit, thus forming a novel distributed energy system where renewable energy sources and natural gas are complementary and heat, electricty, clean water and fertilizer are symbiotic. And it enhances system stability, and energy source supply stability, increases matter recycling ratio and implements high efficiency, stepped energy utilization, applied to colleges, enterprises and institutions, restaurants, housing estates, etc.

The invention discloses a multifunctional energy system. In the system, coal and natural gases simultaneously enter a reforming reactor, and the coal fires in the reforming reactor to drive the reforming reaction of natural gases, which generates synthetic gases of H2 and CO; the synthetic gases pass through a shift converter to convert CO into CO2, and then enter a pressure swing adsorption device(PSA) for preparing hydrogen gases; tail gases generated in the PSA device are sent to a CO2 separator to separate out a majority of CO2, and then compressed and cooled to become liquid CO2, which is convenient for transportation and storage; hydrogen rich fuel gases remained after the separation of CO2 are sent to a generating set, and high-temperature flue gases enter a waste heat recovery anda steam generation device, and the flue gases, the waste heat of which is recovered, are discharged in air; the flue gases discharged by a dual fuel reformer are also enter the waste heat recovery and steam generation device for recovering the waste heat, and then enter the CO2 separator to separate CO2 contained in flue gases; purified CO2 is compressed and liquefied, and finally the flue gases are discharged in air. The multifunctional energy system has the advantages of improving the utilization rate of the fuel and realizing the control and recovery of CO2 with zero energy consumption.

The invention relates to a device and a method for synchronous power generation and multi-generation of coal gas and powdered coal. High-volatile constituent faulty coal lignite, jet coal, non-caking coal, weakly caking coal, bottle coal are taken as feed coal, and enter a gasification-thermal dissociation coupled reactor by pressurizing a feeder so as to be subjected to high-efficiency and rapid pyrolysis reaction. the tar recovered from crude gas is pyrolyzed, the pyrolyzed tar is purified, then the purified tar is subjected to deep processing and transforming, finally, the tar is transformed into clean fuels such as liquefied gas, gasoline and diesel oil, the coal gas and bunker coal powder obtained by separation are subjected to blending combustion in a pulverized fuel boiler or a circulating fluid bed boiler, and thus steam is generated to drive a steam turbine so as to generate electricity. According to the invention, the preparation of coal-based clean fuels and fuel gas electricity generation technology are highly integrated; the coal gas and the coal dust are subjected to blending combustion in the boiler, so that the quantity of flue gas is deeply reduced; the concentration of PM2.5 and PM10 in flue gas is extremely low, the light-concentration emission of SO2, NOX, and heavy metals such as lead, chromium, cadmium, arsenic, mercury is realized, and the multi-generation of coal base energy source and gradient high efficiency utilization are realized.

A coal-to-liquids and gas generating cogeneration apparatus and method are disclosed. The coal-to-liquids and gas generating cogeneration apparatus comprises an integrated apparatus subsystem for extracting coal tar and making gas from coals, a subsystem for preparing cleaning fuel from coal tar, and a subsystem for combusting gas and generating power, wherein the integrated apparatus subsystem for extracting coal tar and making gas from coals comprises a charging unit, a raw coal upgrading conversion unit, and a raw coal upgrading conversion, reaction products separating and purifying unit, the subsystem for preparing cleaning fuel from coal tar comprises a coal tar pretreatment unit, a coal tar hydrogenation unit, and a coal tar hydrogenation products separating and purifying unit, and the subsystem for combusting gas and generating power comprises a steam generation unit and a Rankin-reheating cycle generating unit. The coal-to-liquids and gas generating cogeneration apparatus combines gas generating technology and cleaning fuel preparing technology, and realizes leveled utilization of coal resources, multi-level conversion and high-efficient cleaning conversion and utilization. The raw coal is wide in adaptability, and no secondary pollution is generated. Gas flue is free of lead, chromium, cadmium, arsenic and mercury, and density of NOX and SOX is low.