The present invention discloses a centrifugal fuel purifying apparatus, including, a center shaft, a centrifugal cylinder, a shaft seat, a rotating skeleton, a disc type guide plate, a fuel gathering impeller, a rotating wheel, a vacuum pump, a fuel outlet pipe, a fuel inlet, pipe, a fuel unloading box, a pollutant receiving box, a tank body and a PLC controller, wherein the alarm fuel tank is arranged at the top in a tank body of the fuel tank, a fuel level meter is disposed within the alarm fuel tank, a fuel inlet is provided on the upper part of one side of the alarm fuel tank above the fuel level meter, a fuel outlet is provided on the lower part of one side of the alarm fuel tank below the fuel level meter, and the fuel inlet is communicated with the centrifugal cylinder through the fuel inlet pipe.

A fluidic device includes: a channel that extends along a first axis and through which a fluid flows; an ultrasonic transmission part that is disposed at the channel and transmits an ultrasonic wave into the channel along a second axis orthogonal to the first axis in response to an input of a drive signal; and a controller that controls the ultrasonic transmission part. The controller measures impedance of the ultrasonic transmission part at a time when the ultrasonic transmission part is driven while changing a drive frequency of the drive signal within a predetermined range, specifies a drive frequency at which the impedance is a local maximum and sets the drive frequency at which the impedance is a local maximum as a first drive frequency, and inputs the drive signal of the first drive frequency to the ultrasonic transmission part.

A fluidic device includes: a channel that extends along a first axis and through which a fluid flows; an ultrasonic transmission part that is disposed at the channel and transmits an ultrasonic wave into the channel along a second axis orthogonal to the first axis in response to an input of a drive signal; and a controller that controls the ultrasonic transmission part. The controller measures impedance of the ultrasonic transmission part at a time when the ultrasonic transmission part is driven while changing a drive frequency of the drive signal within a predetermined range, specifies a drive frequency at which the impedance is a local maximum and sets the drive frequency at which the impedance is a local maximum as a first drive frequency, and inputs the drive signal of the first drive frequency to the ultrasonic transmission part.

Systems and methods to separate water and remove solids from a pre-treated and unfiltered renewable feedstock at or separate from a refinery. Such systems and methods may be used to provide a reduced-contaminant and reduced-solid renewable feedstock for further refining.

The disclosure provides a device and method for extracting a clean liquid from a slurry reactor in an environment-friendly and energy-saving manner. The method mainly includes the following steps: S1. siphoning slurry in the slurry reactor into a material collecting pipe, and then spraying the slurry into a settling tank, so that solid particles settle in the settling tank and return to the slurry reactor through a discharging pipe; S2. making supernatant in the settling tank flow upward along a settling pipe, and then flow downward at a pipe intersection into a clear liquid pipe and flow into a clear liquid transition tank; S3. discharging liquid from the clear liquid transition tank in an overflow manner to keep the constant liquid level and a pressure required for siphoning; and S4. introducing gas in the material collecting pipe into an escape pipe and continuously discharging the gas to ensure that the liquid level in the escape pipe is always higher than the pipe intersection so as to ensure that the slurry reactor and the clear liquid transition tank are always communicated and the liquid levels are the same. The device according to the disclosure is simple in structure, and the process is simple, safe and reliable, and is not prone to failure. It is easy to implement large-scale continuous operation and adjust separation efficiency and precision. The device requires low equipment investment and is low in operation cost and environmentally friendly.

A natural gas pretreatment system includes a heat exchanger having a first inlet, a second inlet, a first outlet, and a second outlet. The first inlet receives a first pressurized gas stream having a first input temperature, and the second inlet receives a second pressurized gas stream having a second temperature. The second temperature is higher than the first temperature. The first outlet outputs the first gas stream; upon exiting the heat exchanger, the first gas stream has a first output temperature higher than the first input temperature. The second outlet outputs the second gas stream; upon exiting the heat exchanger, the second gas stream has a second output temperature lower than the second input temperature. The system further includes a pipeline network operable to receive the first pressurized gas stream.

A frac sand separator system includes a sand separator having an inlet fluidly connected to a well for receiving a fracking return mixture from the well. The sand separator is configured to separate water of the fracking return mixture from particulate matter of the fracking return mixture. The sand separator includes an outlet. The frac sand separator system includes a collection container fluidly connected to the outlet of the sand separator for receiving the particulate matter from the sand separator. At least one outlet valve is fluidly connected between the outlet of the sand separator and the collection container. The frac sand separator system includes a computing device operatively connected to the at least one outlet valve. The computing device includes a processor configured to automatically open the at least one outlet valve such that the particulate matter is released from the sand separator into the collection container.

A well production particulate measurement system having a stationary frame removably mountable to tank, a hopper coupled to the frame and moveable relative to the frame; a well production inlet configured to receive well production and discharge the particulates and liquid into the hopper, and to strip at least a portion of a gas phase from the well production; and a weight transducer coupled to the system and configured to sense a weight of particulates in the hopper.

The invention relates to a method of separating a first contaminant from a feed stream further comprising a condensation polymer. The invention further relates to a reactor system for carrying out the method, comprising at least one depolymerization vessel, configured for depolymerizing a condensation polymer into monomer, dimer, trimer and/or oligomer, which depolymerizing occurs in an alcoholic solvent, wherein said condensation polymer is provided as a feed stream further comprising a first contaminant, the reactor system comprising a separation stage, said separation stage comprising a separation vessel, downstream of the depolymerization vessel, configured for collecting a first contaminant, wherein said first contaminant is separated from the alcoholic solvent on the basis of a density separation so that the first contaminant is arranged on top of the alcoholic solvent.

The invention relates to a method of separating a first contaminant from a feed stream further comprising a condensation polymer. The invention further relates to a reactor system for carrying out the method, comprising at least one depolymerization vessel, configured for depolymerizing a condensation polymer into monomer, dimer, trimer and/or oligomer, which depolymerizing occurs in an alcoholic solvent, wherein said condensation polymer is provided as a feed stream further comprising a first contaminant, the reactor system comprising a separation stage, said separation stage comprising a separation vessel, downstream of the depolymerization vessel, configured for collecting a first contaminant, wherein said first contaminant is separated from the alcoholic solvent on the basis of a density separation so that the first contaminant is arranged on top of the alcoholic solvent.