748 results about "Greenhouse effect" patented technology

An amount of photosynthetic biomass such as wood is converted into coal such as charcoal and a substantial amount thereof is permanently stored until the atmospheric CO2 level is reduced to an extent which is unable to cause a greenhouse effect. While a main portion of the charcoal remains in permanent storage, a fraction thereof may be retained prior to or retrieved during or after achievement of the reduction in the atmospheric CO2 level. Such fraction is converted into energy or an energy source, for example hydrogen, in a manner such that thereby the atmospheric CO2 is maintained at a level which does not cause an undesired greenhouse effect.

The invention relates to a carbon-based fertilizer potentiating agent and application of the carbon-based fertilizer potentiating agent. The carbon-based fertilizer potentiating agent is characterized by comprising the raw materials in proportion by weight: 50-70 carbon powder, 5-15 humic acid, 2-5 inhibitors mixing urease inhibitor with nitrification inhibitor, 10-20 microelement fertilizer, and 5-10 acid bentonite or clay; biomass granule carbon is selected as a matrix carrier, the production process is simple, raw materials are easily obtained, and the cost is low. The biomass carbon has strong adsorbability, water retention property and light absorption warming property, and can be used as good ammonia stabilizer and soil conditioner except for the carrier. After being applied into soil, the potentiating agent can lead the fertilizer to slowly release, and can relieve the influence of drought and lacked water and low temperature on crop growth. The potentiating agent not only can improve the fertilizer utilization rate, but also is environment-friendly and safe, can effectively improve the utilization rate of nitrogenous fertilizer and phosphate fertilizer, reduce fertilizer loss, and simultaneously can lighten the water body pollution and greenhouse effect by nitrogenous fertilizer, reduce the content of nitrate nitrogen in agricultural products, and ensure the safety production of food.

The invention relates to a test method for the geological storage of carbon dioxide coal seams and belongs to the technical field of greenhouse gas geological storage. The test method is characterized in that a device adopted by the test method is a large-size test piece capable of being packaged under high pressure and the test piece can be used for simulating the geological environmental conditions of the coal seams with the bury depth up to 4800m, wherein the size of the test piece is 200mm*200mm*400mm; the axial pressure and the confining pressure of the test piece can be up to 120MPa respectively; and the environment temperature of the test piece is up to 200 DEG C. The test device comprises four systems i.e., a geological environment simulating system, a fluid injecting system, a fluid extracting system and a test control system. According to the test method disclosed by the invention, the newly-developed test device for the geological storage of the carbon dioxide coal seams is utilized to simulate the geological conditions of the coal seams with large burial depth, so that the shortcomings that existing test devices are small in test piece size, low in test piece pressure and low in test piece temperature are overcome and the feasibility test study is carried out on the coal seams with the depth of thousands of meters underground.