952 results about "Processing plants" patented technology

A process for liquefying natural gas in conjunction with processing natural gas to recover natural gas liquids (NGL) is disclosed. In the process, the natural gas stream to be liquefied is taken from one of the streams in the NGL recovery plant and cooled under pressure to condense it. A distillation stream is withdrawn from the NGL recovery plant to provide some of the cooling required to condense the natural gas stream. The condensed natural gas stream is expanded to an intermediate pressure and supplied to a mid-column feed point on a distillation column. The bottom product from this distillation column preferentially contains the majority of any hydrocarbons heavier than methane that would otherwise reduce the purity of the liquefied natural gas, and is routed to the NGL recovery plant so that these heavier hydrocarbons can be recovered in the NGL product. The overhead vapor from the distillation column is cooled and condensed, and a portion of the condensed stream is supplied to a top feed point on the distillation column to serve as reflux. A second portion of the condensed stream is expanded to low pressure to form the liquefied natural gas stream.

A hardware and software implemented, standardize testing, scoring and reporting system has a network interface, being either LAN or the Internet. A test is selected from a library, assigned to a group of examinees, and a record is made of the assignment. The test is available on-line, or downloaded, or both. Downloaded tests are saved as PDF files and printed into booklets. Examinees record answers on bubble sheets, which are scanned at the customer site or shipped to a processing plant. Individual scanned answer sheets provided data for individual scanned records. Scanning software performs an initial auto-correct and then performs an initial check for errors in scanned records. Tests are batched for later inspection. Scanned records with errors are classified as invalid and the test papers are separated. Prompts are generated for a human test paper inspection and scanned record editing. Accepted batches of scanned records are sent to a scanned records server where a second scanned records error check is performed. Prompts are sent to the appropriate scanning station for further human editing of invalid scanned records. Once all records are valid they are scored and the test results stored in a database, which is accessed by a reporting subsystem associated with an on-line server.

A carpet disposal method, comprising: collecting carpet, performed by a collection agent having a unique identifier; assigning the collection agent unique identifier to the collected carpet; transporting the uniquely identified carpet to a processing plant; identifying the collection agent of the uniquely identified carpet at the processing plant; sorting the uniquely identified carpet; valuing the sorted carpet; paying the identified collection agent the value of the sorted carpet; and carpet disposal system comprising: a carpet collector that collects carpet, a collection agent having a unique identifier; an assigner that assigns the collection agent unique identifier to the collected carpet; a transporter that transports the uniquely identified carpet to a processing plant; an identifier that identifies the collection agent of the uniquely identified carpet; a sorter that sorts the uniquely identified carpet; a valuer that values the sorted carpet; a payer that pays the identified collection agent the sorted carpet value.

A process for liquefying natural gas in conjunction with processing natural gas to recover natural gas liquids (NGL) is disclosed. In the process, the natural gas stream to be liquefied is taken from one of the streams in the NGL recovery plant and cooled under pressure to condense it. A distillation stream is withdrawn from the NGL recovery plant to provide some of the cooling required to condense the natural gas stream. A portion of the condensed stream is expanded to an intermediate pressure and then used to provide some of the cooling required to condense the natural gas stream, and thereafter routed to the NGL recovery plant so that any heavier hydrocarbons it contains can be recovered in the NGL product. The remaining portion of the condensed stream is expanded to low pressure to form the liquefied natural gas stream.

Systems, methods and devices are provided for collecting operational data at remote oil and natural gas sites, such as wells, and or processing and refinery plants. One such system comprises a remote transmitter and/or controller at the site and an unmanned aerial vehicle (UAV), such as a drone aircraft, configured for aerial dispatch to the remote site and wireless connection to the remote transmitter for subsequent relay or upload of data to an external processor. The UAV may include still or video cameras for collecting images around the well site that can be uploaded and transmitted to the external processor. The system may also include logic-based applications allowing for feedback control of the well site to change operational parameters based on the received data. The system may also include a variety of sophisticated sensor devices on the UAV or located at the remote site to collect additional operational data, such as airborne particulate and/or toxic gas concentrations, audio files of pumps or other equipment and levels and properties of produced water and other fluids.

The present invention relates to one kind of integral high concentration waste water processing apparatus. The apparatus has aerobic baffle plate reactor, water collecting settling tank, aerobic reaction tank or biological contact oxidizing tank and settling tank connected via vertical baffle plates. The unique separating structure and the plug flow mode make each reactor capable of domesticating and culturing microbe colony adaptive to the water quality and environment condition. The present invention is favorable to utilizing the activity of the anaerobic bacteria colony, raising the processing effect and stability of the system and simplifying the system structure. The present invention has small coverage area, low system cost, low power consumption and no frost crack of pipeline.

The invention discloses a Pseudomonas stutzeri JSD-008 and degradation for organophosphorus pesticide, which is preserved in the 'Chinese germ management committee center (CGMCC)' with preservation number at CGMCC No.1738, wherein the strain is separated from the soil at pollution discharge pore of pesticide processing plant polluted by organophosphorus pesticide; the thallus and ferment liquid with the thallus can be degradation agent of organophosphorus pesticide to degrade the chlorpyrifos into trichlopyridinenol and methyl parathion into nitrophenol; fitting for rapid in-situ rehabilitation polluted by field soil pesticide.

The invention is directed to processes for treating biosolids that result in high-value, nitrogen-containing, slow-release, organically-augmented inorganic fertilizer that are competitive with less valuable or more costly conventional commercially manufactured fertilizers. The process involves conditioning traditional waste-water biosolids and processing the conditioned biosolids continuously in a high throughput manufacturing facility. The exothermic design and closed loop control of the primary reaction vessel decreases significantly the amount of power necessary to run a manufacturing facility. The process utilizes green technologies to facilitate decreased waste and enhanced air quality standards over traditional processing plants. The fertilizer produced from recovered biosolid waste is safe and meets or exceeds the United States Environment Protection Agency (USEPA) Class A and Exceptional Quality standards and is not subject to restrictions or regulations.

In a first aspect, systems and methods for producing biodiesel fuel include a modular production unit incorporated onto a single platform or into a housing for ease of relocatability. The modular production unit preferably includes a mixing unit, a reactor unit, a separation unit, a distillation unit, and a filtering unit, all incorporated onto or into a self-contained platform or housing that is able to be easily relocated. In a second aspect, the modular production unit is combined with additional fixed and/or relocatable components to provide a biodiesel processing plant. In a third aspect, a raw materials processing system and method includes a roller barrel adapted for recovery, transportation, and introduction of recycled oil feedstock into a biodiesel manufacturing process. The raw materials processing system preferably includes a hot box for filtering and heating the raw recycled oil feedstock.

Antimicrobial granules comprising granular materials coated with antimicrobial metal agents for use in various surface coating and grouting materials are provided. The antimicrobial granules have utility in imparting durable, safe, inexpensive and powerful antimicrobial properties to materials into which they are incorporated, such as epoxy coating and grouts for surgical theaters, public washrooms, and food processing plants. The granules further are capable of imparting a timed-release dosage of antimicrobial agents so that the effectiveness of the coating is palpable for extended periods.

A mine transportation management system capable of reducing cost by reducing the number of transportation vehicles is provided. For this purpose, the system includes a plurality of self-propelled vehicles and a plurality of vessels each having a communication section, and each being identifiable, which are connectable to and separable from each other. A loading machine having a communication section, which loads an object into at least one of the vessels. A management center, which has a communication section, selects a vessel to be transported and selects a self-propelled vehicle for transporting the selected vessel based on a transportation demand signal from a processing facility, and transmits a transportation command signal to the selected self-propelled vehicle to connect to the selected vessel and to travel to the processing facility.

Provided is a vacuum devolatilizer for use in a polymer manufacturing or processing plant. The devolatilizer comprises a vacuum chamber having an inlet for a polymer melt, an outlet for a polymer melt, a vacuum port through which volatiles may be removed and a stirrer shaft port for the entry of a stirrer shaft. The stirrer shaft passes through the at least one stirrer shaft port and extends into the vacuum chamber and carries an agitation means. The stirrer shaft seal is associated with each stirrer shaft port for sealing against the stirrer shaft and each stirrer shaft seal has an external portion outside the vacuum chamber. The devolatilizer is provided with a motor located outside of the vacuum chamber for rotating shaft and comprises means for blanketing the external portion of the stirrer shaft seal with a low oxygen content gas or vapor, e.g., nitrogen, helium, steam, or carbon dioxide.

The invention discloses a method for preparing bleached chemi-mechanical pulp fore culture paper making by using cotton wood to process remainder, which belongs to the field of pulp refining for making paper. The method mainly comprises presteaming, double screw extrusion, chemical impregnation, high-consistency pulp refining by a double-screw fiberizer, adding medicament in the pulp refining process, high-consistency stay, middle-consistency pulp refining and other steps. The pulp refining process adopts single-section double-screw extrusion and single-section alkaline hydrogen peroxide impregnation, has simple process flow and compact equipment, completely adopts home equipment and saves the investment. The chemi-mechanical pulp prepared by processing cotton wood remainder through the method has the characteristics of high bulk, strength, whiteness and the like, and is suitable for pulp to be used for paper making of medium-high grade culture paper. The method achieves the cleanness and high-efficiency utilization of the remainder of the cotton wood processing factories, and is suitable for medium-small paper making enterprises for producing culture paper dependent on outsourcing goods.

The invention belongs to the technical field of civil engineering material, specifically relates to a dry-mixed mortar with waste stone dust in stone mining and processing plant as aggregate and filler. The dry-mixed mortar is composed of 0.08-5mm of waste stone dust, 0-0.08 mm of waste stone dust, cement, fly ash, metakaolin, calcium hydroxide and water holding thickening agent; with the dry-mixed mortar of the invention adopted, the waste stone dust accounting for 55-75% of the weight of the mortar product can be recycled, thus being environmentally friendly and ecologically friendly. The dry-mixed mortar of the invention not only makes good use of waste material but also features good environmental protection; in addition, the mortar features good water retention rate, fine Constructability, high index of strength and durability, low shrinkage factor and certain crack-resistant property. With all the advantages, the product of the invention can be widely applied to plastering, masonry and land disposal of civil engineering projects of all types.

A self-contained, high efficiency cellulose biomass processing plant includes sources of quantum-based wave energy to facilitate the dilute acid hydrolysis of hemi-cellulose and alpha-cellulose bond. The sources of quantum-based wave energy supply one or more of, and suitably a combination of ultrasonic waves, ultraviolet waves, magnetic waves and direct current to facilitate fracture of the intermolecular bonds. An integrated plant is also provided which combines the cellulose biomass processing plant with apparatus for converting high protein residue into a finished high grade protein product. Due to the high efficiency resulting from use of quantum-based wave energy, the plant uses less energy, and can be small and portable.