287 results about "Hydrocotyle bowlesioides" patented technology

The invention relates to a DDPF regeneration control method, system and program product based on a differential pressure transducer, when a vehicle is in a parking regeneration control state, an engine is controlled to increase the idle speed, and when the upstream temperature of the DDPF exceeds an ignition temperature limit value, the vehicle enters the parking regeneration state; during regeneration, the amount of fuel injected into the engine is determined according to the DDPF upstream temperature, the set temperature target value and the waste gas amount, and engine rear injection is controlled for DDPF regeneration; according to the method, the pressure difference between an inlet and an outlet of the DDPF is obtained, the peak pressure difference P of the DDPF is determined when the regeneration state continues till the pressure difference begins to drop, and the fuel injection quantity is corrected or a prompt signal is sent out according to the size relation between the P and a set limiting value. A temperature sensor at the rear end of the DDPF is omitted, the characteristic that the pressure difference is increased and then reduced due to oxidation heat release of carbon particles and hydrocarbon during regeneration is utilized, regeneration control is achieved based on a pressure difference sensor, and the risk of local overheating damage is dealt with by comparing a pressure difference peak value with a set limiting value.

A process includes receiving, in an unheated coke drum, a feedstock comprising a solid carbon-based material, heating the unheated coke drum and the feedstock comprising the solid carbon-based material to a first temperature to form a heated feedstock comprising the solid carbon-based material in a semi-solid state or a melted state in a heated coke drum, and processing the heated feedstock comprising the solid carbon-based material in the semi-solid state or the melted state in the heated coke drum with a heated petroleum residue-containing feedstock at a second temperature and under reaction conditions to convert at least a portion of the heated feedstock comprising the solid carbon-based material in the semi-solid state or the melted state to a product stream including a gas phase including hydrocarbons and hydrogen, and coke.

To improve the mechanical strength of hydrocarbon-based electrolyte membranes. [Solution] An electrolyte membrane 10A comprising a porous membrane 1 and a hydrocarbon-based electrolyte polymer filled in the pores 2 of the porous membrane 1, wherein the porous membrane 1 is formed of a material containing a hydrocarbon-based resin, and the differential permeate flow rate distribution of the porous membrane 1 measured by the bubble point method has a peak in the pore diameter range of 0.01 to 1 μm.

CO2 introduced into the ground reacts with water in the moisture present in the surroundings to convert to hydrocarbon, suppressing leakage of CO2 above ground. The method for producing hydrocarbon has an introduction step for introducing CO2 into a storage site in the ground where moisture and a catalytic metal are present, the pressure is 5 MPa or higher, and the temperature is 40° C. or higher, to bring the CO2 into a subcritical state or a supercritical state, and a synthesis step for reacting the water in the moisture with the subcritical or supercritical CO2 in the storage site to synthesize hydrocarbon. The storage site is preferably a site from 800 m to 1200 m below ground. The pressure of the storage site is preferably 8 MPa or higher.

A connector assembly for securing a first hydrocarbon production system component to a second hydrocarbon production system component includes a connector body having a first end connectable to the first component and a second end connectable to the second component. An annular primary sealing member is positioned between the connector body and the second component. At least one test port extends through the connector body from an outer surface of the connector body to a space between the connector body and the second component which is in fluid communication with an exterior side of the primary sealing member. In this manner, the primary sealing member may be pressure tested by communicating a test pressure through the at least one test port to the exterior side of the primary sealing member.

Apparatus and methods for measuring the efficiency of a thermal catalytic combustion unit. An example method provides a thermal catalytic combustion unit, a drying unit fluidically connected to the thermal catalytic combustion unit and configured to be downstream of the thermal catalytic combustion unit, and a sensor fluidically connected to the thermal catalytic combustion unit and configured to be downstream of the thermal catalytic combustion unit. The method further includes flowing a formation fluid sample through the thermal catalytic combustion unit, flowing a formation fluid sample through the drying unit, and sensing the formation fluid sample with the sensor after the formation fluid sample has flowed through the thermal catalytic combustion unit. The sensing detects the presence of a hydrocarbon and / or carbon monoxide in the formation fluid sample.

The invention relates to a hydrocarbon adsorption material in a cold start stage of a diesel vehicle and a preparation method and application of the hydrocarbon adsorption material in the technical field of environmental catalysis and tail gas purification, the adsorption material comprises an active component and a carrier material, the active component is Ag, the carrier material is ZSM-5 zeolite with an MFI topological structure, and the mass fraction of the active component Ag is 2.0 wt%. The carrier ZSM-5 is loaded with Ag species through a two-step ion exchange method, ammonium salt pretreatment and silver ion exchange are included, and after centrifugation, drying and air atmosphere calcination, the high-performance material for hydrocarbon adsorption in the cold start stage of the diesel vehicle is finally prepared. The prepared adsorption material has the advantages of being high in silver species dispersity, large in low-temperature adsorption capacity and good in matching of a high-temperature desorption window and DOC activation temperature, compared with traditional silver modified zeolite, the adsorption capacity is increased by 125.7% and 79.6% respectively, desorption peaks are concentrated and matched in temperature, the HCs rejection rate in the cold start-up stage is larger than or equal to 90%, and the adsorption material has the remarkable application value and is suitable for popularization and application. And upgrading and optimization of a diesel vehicle tail gas purification technology can be promoted.

To provide a safe hydrogen energy utilizing device in which hydrogen obtained by electrolyzing water or electrolytic water is dissolved in water and efficiently bonded to carbon dioxide to obtain water containing hydrocarbon and which is not easily exploded by static electricity or the like.SOLUTION: Electrolytic water, an electrode, and a vibration device are provided in an oil-resistant, chemical-resistant, acid-resistant, and alkali-resistant resin container in which hemispherical water or electrolytic water containing carbonated water and carbonic acid is put, and electrolysis is performed while vibration and stirring are performed, so that hydrogen is dissolved in the electrolytic water and stored as nanobubbles and microbubbles. At this time, high-pressure carbonated water is added and vibration is applied to collapse nanobubbles and microbubbles composed of hydrogen and oxygen in the electrolytic water. As a result, a hydrogen atom and carbon dioxide can be efficiently bonded to obtain a hydrocarbon.SELECTED DRAWING: Figure 1

Method for rapid decontamination and for making hydrocarbon-contaminated equipment safe for entry (104) by sequencing a cleaning foam or spray, an encapsulating spray or foam, and a dry carrier gas.

A method for organic compound removal from a solution using microalgae includes extracting one or more hydrocarbons from an underground geologic formation to form a hydrocarbon composition and a produced water including at least a portion of the one or more hydrocarbons and one or more salts. The method further includes mixing the produced water with a wastewater to form a solution, and then contacting a microalgae feedstock, Chlorella sorokiniana, with the solution in a bioreactor. The total lipid content of the microalgae feedstock is 13 to 17%. The method includes removing the one or more hydrocarbons, nitrogen, and phosphorous from the solution by algal consumption with the microalgae feedstock. The method of the present disclosure removes 80 to 90 wt. % of the one or more hydrocarbons, 70 to 85 wt. % nitrogen, and 90 to 100 wt. % phosphorous.

This invention provides a method for evaluating the cost-effectiveness of semi-coke based on the effective calorific value of pulverized coal, relating to the field of iron and steel metallurgy. First, a formula for calculating the effective calorific value of pulverized coal in a blast furnace is established. By calculating the heat released from incomplete combustion of carbon and deducting the heat absorbed by moisture decomposition, hydrocarbon cracking, ash slag formation, and desulfurization, an effective calorific value more consistent with the actual operating conditions of the blast furnace is obtained. Subsequently, this effective calorific value is divided by the injection cost to construct a cost-effectiveness index. By calculating and comparing the cost-effectiveness index of the target fuel combination after semi-coke partially replaces anthracite with the benchmark combination cost-effectiveness index, the economic viability of semi-coke substitution can be accurately determined, and the critical price or price range for cost-effective semi-coke can be directly calculated. This invention overcomes the shortcomings of traditional evaluation methods that are detached from the actual thermal environment of the blast furnace, providing a scientific and quantitative decision-making basis for fuel procurement and coal blending optimization.

The application provides a Ce / HZSM-5 catalyst and a preparation method and application thereof, wherein the mass fraction of Ce in the Ce / HZSM-5 catalyst is 1-2 wt% based on 100% of the mass of the Ce / HZSM-5 catalyst. The mass fraction of Ce in the Ce / HZSM-5 catalyst provided in the application is 1-2 wt%, and the Ce loaded on the HZSM-5 can not only adjust the acidity of the Ce / HZSM-5 catalyst, but also can avoid the accumulation of Ce in the zeolite channel of the HZSM-5, so as to reduce the pore volume and pore size of the Ce / HZSM-5 catalyst, so that the Ce / HZSM-5 catalyst has high activity and selectivity to hydrocarbons, and the conversion rate of oxygen-containing compounds in PET cracking oil is improved.

The utility model relates to a kind of liquid rocket engine ground test drive's emergency shutdown control system and test device. Among them, liquid rocket engine ground test drive's emergency shutdown control system, including PXI device, SIS system, programmable logic controller, first engine working condition abnormality judging sensor, second engine working condition abnormality judging sensor, pressure sensor, flammable hydrocarbon gas detector, flame detector, control electric circuit and solenoid valve. By applying a variety of sensors, and using PXI device, SIS system and programmable logic controller are composed of redundant control system, reach the purpose of improving liquid rocket engine ground test emergency shutdown reliability, enhance the safety of liquid rocket engine ground test.

Systems and methods for processing a C3 and C4 hydrocarbon mixture have been disclosed. The C3 and C4 hydrocarbon mixture is first processed in an isomerization unit to isomerize n-butane to form isobutane. The resulting effluent stream from the isomerization unit comprising primarily isobutane and C3 hydrocarbons, collectively, is flowed into a separation unit configured to separate the effluent stream to form a C3 stream comprising C1 to C3 hydrocarbons and a C4 stream comprising primarily isobutane. The isobutane in the C4 stream is further dehydrogenated to form isobutene, which is further flowed into an MTBE synthesis unit as a feedstock for producing MTBE.

The invention discloses a device and a process for refining and purifying nitrogen, and relates to the technical field of nitrogen purification, and the process comprises the following steps: step 1, desulfurization pretreatment: feeding a raw material common nitrogen from a nitrogen inlet, and removing sulfides such as H2S and SO2 through a desulfurization tower; step 2, TSA deep decarburization: the desulfurized nitrogen enters a decarburization tower A or a decarburization tower B which is working, and CO2, CO and hydrocarbon are deeply removed; and 3, purity monitoring and output: detecting the purified nitrogen through an analyzer to generate qualified high-purity nitrogen, outputting the qualified high-purity nitrogen, and automatically emptying the qualified high-purity nitrogen if the qualified high-purity nitrogen is not qualified. By inheriting a double-tower composite process of normal-temperature desulfurization and temperature swing adsorption and introducing online monitoring and automatic control, deep, continuous and stable removal of various impurities such as carbon monoxide, carbon dioxide and sulfide in nitrogen is realized, and the problems that an existing purification device is single in function, cannot deeply remove various harmful impurities and is low in purification efficiency are solved. And a continuous operation and real-time quality assurance mechanism is lacked.

The present application relates to systems and methods for controlling regeneration of an aftertreatment system including multiple branches. A controller for controlling regeneration in an aftertreatment system including a first branch and a second branch is configured to: determine whether regeneration is allowed by an engine based on engine operating parameters; in response to regeneration being allowed, determine whether regeneration is required in at least one of the first branch or the second branch and whether regeneration is prohibited in the first branch or the second branch based on operating parameters of the first branch and the second branch; and in response to determining (i) that regeneration is required in at least one of the first branch or the second branch and (ii) that regeneration is not prohibited in the first branch or the second branch, cause introduction of a hydrocarbon to the engine to raise a temperature of exhaust gas to a target temperature and cause regeneration in each of the first branch and the second branch.

An acidic gas recovery system includes a cooling tower into which a target gas of treatment containing an acidic gas is introduced to cool the target gas of treatment; an inlet adsorption device that is configured to bring the target gas of treatment cooled in the cooling tower into contact with activated carbon to remove hydrocarbons remaining in the target gas of treatment; an absorption tower that is configured to discharge the absorbent liquid which has absorbed the acidic gas and an absorption tower discharge gas containing the target gas of treatment from which the acidic gas is removed; and a regeneration tower that is configured to discharge the absorbent liquid from which the acidic gas is released and a regeneration tower discharge gas containing the acidic gas.

The invention relates to the technical field of hydrocarbon synthesis, and discloses a solvent-free synthesis process of a high-purity alpha-methylstyrene linear dimer, which comprises the following steps: mixing a monomer and a catalyst for reaction, cooling the reaction system to a preset dynamic viscosity interval, introducing micron-sized deionized water as a polar induction core by using an atomization device, and carrying out reaction to obtain the high-purity alpha-methylstyrene linear dimer. According to the method, the micro-emulsification steady state of a solvent-free system is broken by utilizing an interface directional capture mechanism, residual catalytic centers in the organic phase are physically removed, and the catalytic activity of the solvent-free system is improved, so that the catalytic activity of the solvent-free system is improved, and the catalytic activity of the solvent-free system is improved. The mechanism eliminates the technical risk that the catalyst is decomposed to generate hydrogen fluoride in the rectification process, prevents the pyrolysis rearrangement of linear products to cyclic isomers, and ensures the purity of medical intermediates.

The invention relates to a method for evaluating the stability of heavy oil based on composition distribution of hydrocarbon, which comprises the following steps: detecting composition distribution data of hydrocarbon in a heavy oil sample by adopting high-resolution mass spectrometry equipment, and calculating the instability index of the heavy oil sample according to a specific formula. The sample amount and the solvent amount used for analysis are small, the test process is short in time consumption, the evaluation result is accurate, the reproducibility is good, and the discrimination degree is high; the method is especially suitable for analysis requirements of heavy oil stability in processes of heavy crude oil on-site modification, asphaltene deposition research, heavy oil separation and component refining, heavy ship fuel component blending, inferior residual oil fixed bed hydrogenation, slurry bed hydrogenation, fluidized bed hydrogenation and the like.

A method and system for separating sublimable compounds from hydrocarbons are disclosed. A feed fluid stream consisting of hydrocarbons and sublimable compounds is introduced into the upper chamber of a vessel. The feed fluid stream is cooled in the upper chamber, causing a portion of the sublimable compounds in the feed liquid stream to sublimate to form a product gas stream and a sublimable compound snow-like substance, the latter of which is collected in the lower chamber of the vessel. The lower portion of the sublimable compound snow-like substance is melted to form a liquid sublimable compound stream, such that the upper portion of the solid sublimable compound snow-like substance remains as an insulating barrier between the upper chamber and the liquid sublimable compound stream. The sublimable compound stream is removed from the ore liquid at a rate matching the rate of formation of the solid sublimable compound snow-like substance, thereby maintaining the insulating barrier.

The application provides a DPF regeneration interruption method, device and electronic equipment. The method comprises the following steps: a control step, in the case that the DOC reports an efficiency low fault, controlling the engine to perform DOC thermal management, wherein the efficiency low fault is a fault caused by the fact that the gas conversion efficiency of the DOC is lower than a preset efficiency threshold; a calculation step, in the case that the DOC thermal management time is greater than a preset time threshold, calculating the gas conversion efficiency of the DOC; in the case that the gas conversion efficiency is lower than the preset efficiency threshold, the number of times of non-recovery is increased by one, and the control step and the calculation step are continued to be executed at least once until the number of times of non-recovery is greater than a preset threshold, and DPF regeneration is prohibited. Through the application, the problem that the existing technology still continues to regenerate after the DOC efficiency is low, which can cause the accumulation of hydrocarbons and cause blockage, is solved.

A non-transitory, processor readable medium stores instructions that, when executed by a processor, causes the processor to receive (1) an indication of a feed gas flow rate measured between a feed gas source and an internal combustion engine (ICE) and (2) an indication of an oxygen enriched air flow rate measured between an air separation unit (ASU) and the ICE. A measured equivalence ratio is determined based on a feed gas composition, the feed gas flow rate, and the oxygen enriched air flow rate. The instructions further cause the processor to generate at least one of a first signal to cause a change in revolution speed of the ICE, a second signal to cause a first flow control device to modify the feed gas flow rate, or a third signal to cause a second flow control device to modify the oxygen enriched air flow rate.

The application discloses a kerosene gel propellant and a preparation method thereof, and belongs to the technical field of propellants. The propellant provided by the application comprises the following components in mass ratio: kerosene 37wt.%-68wt.%, modified boron 30wt.%-60wt.%, and gelling agent 2wt.%-5wt.%. The modified boron is halogen alkyl silane functionalized boron obtained by chemical combination of halogen alkyl silane and boron, and the halogen alkyl silane functionalized boron comprises a -B-O-Si- framework. The stable and controllable coating layer is obtained on the surface of boron particles by modifying the boron through halogen alkyl silane functionalization, and the higher content of boron particles is stabilized in kerosene. In addition, the high active halogen free radicals can be generated in the combustion process, the ignition and combustion of boron are accelerated, and the carbon deposition effect of kerosene hydrocarbons is reduced. The propellant has higher stability, excellent ignition performance and higher combustion efficiency.

The present application relates to the technical field of biological control of agricultural pests, and particularly relates to a method for improving pathogenicity of Metarhizium rileyi CQMa421 to Nilaparvata lugens by using carbon-hydrogen compounds on the body surface of the brown planthopper. The method for improving pathogenicity of Metarhizium rileyi to Nilaparvata lugens comprises mixing an effective dose of n-undecane liquid agent with the Metarhizium rileyi. The present application adopts the mixed use of n-undecane and Metarhizium rileyi, shortens the median germination time of Metarhizium rileyi, accelerates the initial process of infection, improves the pathogenicity to Nilaparvata lugens, and is conducive to rapid pest control. The n-undecane is a natural compound carried by insects, and the compound is safe to the environment and non-target organisms, and meets the development needs of green agriculture. The method only needs to simply mix the existing Metarhizium preparation with n-undecane before application, without the need to change the existing application equipment and process, and is easy to popularize and apply.

The present invention relates to an enzyme cocktail, a method for the deconstruction of lignocellulosic biomass using said cocktail, and a genetically modified microorganism for producing heterologous enzyme aimed at making biomass fermentable into biorenewable products such as biofuels, organic acids, and hydrocarbon.

The invention relates to a multi-layer electrode for the electrolysis of CO2, in particular to a bipolar multi-layer electrode for the stable electrochemical reduction of CO2 to hydrocarbons and a corresponding electrochemical cell. Thus, a multilayer electrode (10) for CO2 electrolysis is proposed, comprising: a gas diffusion layer (12) having a predetermined pore size suitable for CO2 diffusion; a catalyst layer (14) adjacent to the gas diffusion layer (12) and comprising a copper-based cathode catalyst; and a conductive layer (16) adjacent to the catalyst layer (14), where the gas diffusion layer (12), the catalyst layer (14) and the conductive layer (16) together form a gas diffusion electrode, and where the catalyst layer (14) comprises a predetermined amount of anion exchange ionomer (18) and the conductive layer (16) comprises at least one layer comprising a predetermined amount of cation exchange ionomer (24). According to the invention, the electrically conductive layer (16) comprises a graphitic layer (20) comprising a predetermined portion of a cation exchange ionomer (24).

The invention discloses a process method for preparing green hydrogen by coupling biomass flameless pyrolysis gasification with steam reforming, and relates to the technical field of hydrogen energy preparation and organic solid waste recycling, and the process method comprises the following steps: in a high-frequency electromagnetic heating austenite alloy rotary kiln, carbon-containing organic matters are subjected to primary cracking by using a light quantum energy field excited by an alloy; combustible gas and solid carbon residues are mixed; the primary product is introduced into a light quantum reforming reactor, high-temperature superheated steam is introduced into the light quantum reforming reactor, in the reforming reactor, the high-temperature steam is dissociated into active [H] atoms and [OH] free radicals under the action of a light quantum field, the active [H] atoms and the [OH] free radicals are subjected to an efficient roaming chemical reaction with primary combustible gas and solid carbon, and hydrocarbon and carbon are preferentially converted into H2 and CO; finally, the reaction product is subjected to pressure swing adsorption or molecular sieve separation to obtain high-purity hydrogen, energy field precise excitation and chemical reaction cooperation are achieved, and the yield and selectivity of hydrogen are greatly improved.

Title: Thermal Regulation System The invention relates to a thermal regulation system (1), in particular configured for installation on a vehicle, comprising: a refrigerant circuit (50) configured to use a refrigerant, in particular a flammable type, for example a hydrocarbon-based refrigerant, in particular propane; an enclosure (30) in which the refrigerant circuit (50) is placed, the enclosure being provided with sealed walls (31) and a vent (32) configured to allow the gas present in the enclosure to escape to the outside of the enclosure through this vent (32), in particular when the pressure in the enclosure reaches a predetermined pressure threshold associated with the vent. Figure for the abstract: Fig. 1

This acidic gas recovery system comprises: a cooling tower into which a gas to be treated containing an acidic gas is introduced and which cools the gas to be treated; an inlet adsorption device that brings the gas to be treated cooled by the cooling tower into contact with an activated carbon to remove hydrocarbons remaining in the gas to be treated; an absorption tower that discharges an absorption liquid that has absorbed the acidic gas and an absorption tower discharge gas containing the gas to be treated from which the acidic gas has been removed; and a regeneration tower that discharges the absorption liquid from which the acidic gas has dissipated and a regeneration tower discharge gas containing the acidic gas.

A method for exhaust aftertreatment of an internal combustion engine (10) with an exhaust system (20) in which a NOx storage catalyst (28) with a low-temperature storage component (48) made of cerium oxide and a high-temperature storage component (52) made of barium carbonate as well as an SCR catalyst (34) and / or particulate filter (30) with an SCR coating (32) arranged downstream of the NOx storage catalyst (28) in the flow direction of an exhaust gas of the internal combustion engine (10), comprising the following steps: - Modeling the loading state of the NOx storage catalyst (28), wherein - the charging of the low-temperature storage component (48) is determined by a first model for the charging of the low-temperature storage component (48), and - the loading of the high-temperature storage component (52) is determined by a second model for the loading of the high-temperature storage component (52), - Regenerating the NOx storage catalyst (28) by introducing unburned hydrocarbons into the exhaust system (20) of the combustion engine (10) when the high-temperature storage component (48) has reached a defined loading level and the SCR catalyst (34) or the particulate filter (30) with the SCR coating (32) has an operating temperature at which selective catalytic reduction of nitrogen oxides is possible, wherein - depending on whether the SCR catalyst (34) or the particulate filter (30) with the SCR coating (32) has an operating temperature at which selective catalytic reduction of nitrogen oxides is possible, at least two threshold values ​​are used, wherein - a first threshold value is provided at which a regeneration of the NOx storage catalyst (28) is carried out when the SCR catalyst (34) or the particulate filter (30) with the SCR coating (32) has reached its operating temperature and wherein - a second threshold is provided at which regeneration of the NOx storage catalyst (28) takes place independently of the temperature of the SCR catalyst (34) or the particulate filter (30) with SCR coating (32).