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229results about How to "Reduce carbon dioxide emissions" patented technology

Road autonomous cleaning control system and method based on laser and vision

The invention discloses a road autonomous cleaning control system and method based on laser and vision and belongs to the technical field of control systems. The road autonomous cleaning control system comprises a bottom layer control system, a laser and vision navigation and positioning system, a wireless data transmission base station network and a man-machine interaction platform, wherein the bottom layer control system and the laser and vision navigation and positioning system are connected to realize data protocol conversion, the bottom layer control system and the laser and vision navigation and positioning system are in data communication with the man-machine interaction platform via the wireless data transmission base station network, and autonomous route planning as well as navigation and positioning can be realized when a motor sweeper runs in an unmanned manner; in an autonomous control mode, the motor sweeper can be controlled to complete road cleaning work without worker involvement, labor intensity of environmental sanitation workers in cities can be lowered, carbon dioxide emission and environment pollution in the cities can be lowered, and energy structure optimization can be realized.
Owner:济宁中科智能科技有限公司 +1

Process For Recovering Hydrogen And Carbon Dioxide

The present invention provides a process for recovering hydrogen and carbon dioxide from a process stream (1) of a process unit (0) wherein the process stream (1) contains at least carbon dioxide, hydrogen and methane. In the process, the process stream (1) is optionally compressing in a first compressor (2) before being cooled in a heat exchanger (3) to a temperature equal to or less than −10° C. Next, the cooled process stream (1) is separated and purified in a carbon dioxide separation unit (4) to produce a carbon dioxide rich liquid stream (6) and a carbon dioxide lean non-condensable stream (5) with the carbon dioxide rich liquid stream (6) being withdrawn as a carbon dioxide product for further use. The carbon dioxide lean non-condensable stream (5) is then withdrawn from the carbon dioxide separation unit (4) and passed through a hydrogen selective membrane separation unit (7) to form a hydrogen rich permeate stream (8) with the remaining components in the carbon dioxide lean non-condensable stream (5) forming a hydrogen lean residue stream (9). The hydrogen lean residue stream (9) is passed through a carbon dioxide selective membrane separation unit (10) to form a carbon dioxide enriched permeate stream (11) with the remaining components in the hydrogen lean residue stream (9) forming a carbon dioxide depleted residue stream (12). The hydrogen rich permeate stream (8) is optionally compressed in a second compressor (13) and recycled for use as a supplemental feed stream in the process unit (0) or in other processes. The carbon dioxide enriched permeate stream (11) is recycled to the process stream (1) prior to the compressor (2) or within the compressor (2) between stages of compression, or to the carbon dioxide separation unit (4) while the carbon dioxide depleted residue stream (12) is withdrawn for further use. The present invention further relates to the use of this process within a hydrogen generation plant to increase recovery of hydrogen and capture equal to or greater than 90% of the carbon dioxide in the syngas stream.
Owner:AIR LIQUIDE LARGE INDS U S LP +1
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