Abstract: A cable handling bow (2) for an overboarding system of a work platform has a cable retaining structure (4) for retaining a length of a cable, where the cable retaining structure (4) extends along a partially curved path (6). The path (6) has a first end (8) and an opposed second end (10), where the path (6) has a first straight segment (14) located between the first end (8) and the second end (10) and is spaced away from both ends (8, 10), such that a cable joint connecting two ends of a cable is placeable in the first straight segment (14), when the cable length is retained in the cable retaining structure (4).

Abstract: A compression system and method for compression of a gas having a temperature greater than an underground soil temperature within the earth is described. The system includes a gas compressing vessel arranged underground within the earth. The gas compressing vessel has thermally conductive walls with a circular cross-section of an inner side. An outer side of the walls is surrounded by a layer of a thermally conductive material, so as to maintain the compressed gas within the gas compressing vessel at a temperature of the soil during air compression and storage. The system also includes a water supply vessel arranged underground within the earth and a water pressurization system arranged on a pressurized water pipeline connecting the water supply vessel to the gas compressing vessel.

Abstract: The disclosure provides processes for fluid catalytic cracking of feed streams including hydrocarbons and varying amounts of mixed waste plastic oil to produce valuable petroleum products, such as light olefins. The process generally includes providing a waste plastic pyrolysis oil; passing the waste plastic pyrolysis oil through at least one guard bed configured to adsorb chlorine components; providing a hydrocarbon stream; combining the hydrocarbon stream with the waste plastic pyrolysis oil to provide a combined feed stream; and feeding the combined feed stream, along with steam, to a fluid catalytic cracking unit.

Abstract: Catalyst compositions and processes for making and using same. The catalyst composition can include 0.001 wt % to 6 wt % of a Group 8-10 element disposed on a support, based on the weight of the support. The support can include Al and at least 0.5 wt % of a Group 2 element, based on the weight of the support. The catalyst composition can be free of Si or can contain <0.5 wt % of Si, based on the weight of the support.

Abstract: A method for remediation of environments contaminated with halogenated organic compounds, in particular per- and polyfluoroalkyl substances, the method comprising the steps of placing a plurality of electrodes in the contaminated environment, applying an electric direct current between said electrodes, providing at least one electrically conductive reductant for halogenated organic compounds, obtaining information indicative of the electrical resistance between said electrodes, analyzing said information to detect whether at least one of said electrodes introduced a lower electric current into the contaminated environment compared to the remaining ones of said electrodes and bringing said reductant into or in close proximity to the contaminated environment in response to said detection such that the electrical resistance to the contaminated environment of at least one of said electrodes identified to introduce a lower electric current into the contaminated environment is decreased.

Abstract: A process for producing a mixture of hydrocarbons from plastic waste, the process comprising the steps of a) contacting the plastic waste with steam and a hydrogen controlling material comprising at least one transition metal and/or its oxide, wherein the transition metal is not in its highest oxidation state, thereby forming a mixture of gaseous hydrocarbons and a mixture of condensed hydrocarbons, and oxidizing the hydrogen controlling material to an oxidized hydrogen controlling material; and x) withdrawing a mixture of hydrocarbons in gaseous form.

Abstract: A plurality of structural units for construction of eco-friendly structures in a body of water. A plurality of structural units comprises a primarily calcium carbonate material, preferably obtained from once living material from an organism, and a cement that is capable of holding the primarily calcium carbonate material. The plurality of structural units are of variable size and shape and are obtained by breaking up a larger portion of a composition formed by combining the primarily calcium carbonate material and the cement to hold the primarily calcium carbonate material.

Abstract: An installation for the load-out into the water of a heavy load located onshore, in particular a load constituted by a tripod- or tetrapod-type float. The installation has at least two support structures that are independent of one another and can be moved on the respective paths, each of which being equipped with lifting means configured to be hooked to the load, each of these support structures being equipped with a counterweight. The installation is configured to allow the lifting means of the support structures, when the load is positioned in the load-out area, to extend at least partially above the water in order to lower the load into it.

Abstract: A pipe trench safety brace-barrier system and method for use to form a protected workspace in a trench, providing trench-shoring or trench-shielding protection around an underground workspace in a portion of a trench within which a pipe, conduit, cable, or similar structure, and any manhole, junction box, or similar structure or equipment is to be installed. The pipe trench safety brace-barrier provides two trench side units, each having a main wall unit and two wing wall units. The main wall units are placed against opposing sides of the workspace, providing barriers against cave-ins or encroachment from the sides of the wider section of trench. In use, the wing wall units are angled inward toward the pipe, providing barriers against cave-ins or encroachment from the entering and exiting portions of the trench adjacent to the workspace. Optional adjustable wing extensions on the wing wall units are moved into place to support and limit movement of the pipes.

Abstract: The present invention relates to a riparian zone of a reservoir, which zone is arranged on a side slope of a river, lake or reservoir. The riparian zone has a low-frequency submergence area, a relatively-low-frequency submergence area, a medium-frequency submergence area, a relatively-high-frequency submergence area and a high-frequency submergence area, which are sequentially arranged on a side slope of a reservoir from top to bottom and are distributed according to a cumulative submergence frequency of the side slope of the reservoir; a submerged bank structure is arranged in the relatively-high-frequency submergence area, and vegetation of the relatively-high-frequency submergence area is planted on the submerged bank structure of the relatively-high-frequency submergence area; vegetation of the medium-frequency submergence area is planted in the medium-frequency submergence area; and vegetation of the relatively-low-frequency submergence area is planted in the relatively-low-frequency submergence area.

Abstract: Flexible containment tubes form sections of a dike for fluid containment. For example, multiple vinyl-coated polyester tubes with a 19-inch diameter may be filled with water and stacked on top of each other to create a temporary diversion dike. Multiple sections of dike may be abutted together to form longer sections of dike. A vapor barrier or plastic membrane may wrap over dike sections and/or weaved through the flexible containment tubes as they are placed prior to filling. Configurations of the vapor barrier and associated anchoring mechanisms improve the utility of dike sections by reducing hydrostatic pressure of contained fluid on the dike, harnessing the weight of fluid columns, and mitigating seepage through the dike sections.

Abstract: The present application provides a treatment method and device for a waste plastic. A first aspect of the present application provides a treatment method for a waste plastic, including: firstly subjecting the waste plastic to a first pre-treatment to remove impurity and grease on a surface of the waste plastic, then subjecting the waste plastics to a second pre-treatment to convert a solid waste plastic into one in flow state; and finally, subjecting the waste plastic in flow state to a first cracking treatment and a second cracking treatment in sequence. Through the method provided in the present application, while cracking the waste plastic, chlorine element in the waste plastic may be removed by a multi-stage adsorption, which reduces chlorine content in the cracked oil, reduces pressure and burden in subsequent refining, and meets the limitation of the chlorine content in cracked products in downstream processes.

Abstract: An exemplary system and method for enhanced structural and thermal structure having an engineered thermal transition zone that integrates with an energy pile section having foundation pile for retaining engineered material or soil and thermal cooling loop that circulate through the material. An apparatus includes an outer surface extending between a first end and a second end of the section; an inner surface spaced apart and radially inward from the outer surface and defining a central channel of the apparatus; a thermal transition zone extending between the outer surface and the inner surface, the thermal transition zone configured to facilitate heat transfer between the inner surface and the outer surface; and a conductive conduit extending through at least the thermal transition zone from the first end to the second end of the apparatus.

Abstract: The invention relates to a production and separation device and method wherein: a reforming effluent (40) is produced and fractionated in a separation unit (1) and a fractionation train (5-6-7) for extracting benzene (22), toluene (23), xylenes (24) and C9-10 aromatics; aromatics are extracted from a feedstock (41) in a liquid-liquid extraction unit (14) to produce a first raffinate (43) and a first extract (42), the first extract (42) being sent to a benzene-toluene fractionation device (5); the xylenes are separated in a xylene separation unit (10) to produce a second extract (31) containing para-xylene, and a second raffinate (32) containing ortho-xylene and meta-xylene; and the second raffinate is isomerised in an isomerisation unit (11) so as to produce an isomerate (34) enriched in para-xylene sent to a fractionation train (5-6-7).

Abstract: A drop hammer pile driving system comprising a housing assembly comprising a housing member and a drop plate assembly, a hammer member, and a drive system. The drive system comprises a first drive wheel assembly comprising a first drive wheel and a motor and a second drive wheel assembly comprising a second drive wheel and an actuator assembly. The actuator assembly displaces the second drive wheel between first and second positions. When the pile upper end is at an engaging location and the drive wheel is in the second position, operation of the motor rotates the first drive wheel such that the first and second drive wheels engage the hammer member to lift the hammer member relative to the housing member.

Abstract: An apparatus for building expanded shaft augured foundation elements, comprising: a dual-section drilling augur having a lower section and an upper section, wherein the lower section and the upper section are configured to rotate relative to each other.

Abstract: A method of storing hydrogen includes treating an underground geological formation containing subterranean rocks and absorbing the hydrogen gas into the treated underground geological formation.

Abstract: A support for use with a solar tracker includes two screw piles or blade piles (41, 42) inserted into the ground at an angle to vertical, wherein top portions of the two screw piles or blade piles (41, 42) are positioned close to each other, and a connector (46) connecting the top portions of the two screw piles or blade piles to each other, the connector carrying or forming a solar tracker support.

Abstract: The invention relates to a method for designing and forming a retaining wall in the ground having a required target wall stiffness made of a soil-based mortar, which is produced in the ground by mixing soil material and a cement suspension, and vertically aligned support beams, which are positioned in the soil-based mortar and arranged therein, wherein the arrangement of the support beams is laid-out to have an overall beam stiffness. According to the invention, it is provided that the support beams are arranged such that the laid-out overall beam stiffness is less than the required target wall stiffness, and that, when laying-out and arranging the support beams, an additional stiffness component is added that results from at least one adjacent wall section made of soil-based mortar.

Abstract: A reinforcement for strengthening soil areas, ground surfaces, and in particular subsoils, and earthwork structures includes at least one reinforcement element, preferably a plurality of reinforcement elements which, in particular, intersect at an angle, wherein the at least one reinforcement element includes at least one actuator by way of which a property of the reinforcement element can be changed, and in particular at least temporarily changed. A structure on a subsoil, and in particular an earthwork structure includes the aforementioned reinforcement, and a method is provided for operating the aforementioned reinforcement.