Welcome to the company ! we have many years of professional experience !
rsdgj@pyzyrsd.com +86 13525609655

supercritical anhydride extraction

Established in 2001, Puyang Zhong Yuan Restar Petroleum Equipment Co.,Ltd, “RSD” for short, is Henan’s high-tech enterprise with intellectual property advantages and independent legal person qualification. With registered capital of RMB 50 million, the Company has two subsidiaries-Henan Restar Separation Equipment Technology Co., Ltd We are mainly specialized in R&D, production and service of various intelligent separation and control systems in oil&gas drilling,engineering environmental protection and mining industries.We always take the lead in Chinese market shares of drilling fluid shale shaker for many years. Our products have been exported more than 20 countries and always extensively praised by customers. We are Class I network supplier of Sinopec,CNPC and CNOOC and registered supplier of ONGC, OIL India,KOC. High quality and international standard products make us gain many Large-scale drilling fluids recycling systems for Saudi Aramco and Gazprom projects.

Certificate of Honor

CONTACT US

Fill in the following information, we will contact you in the shortest possible time.

supercritical anhydride extraction
(PDF) Near-Critical and Supercritical Fluid Extraction of ...
(PDF) Near-Critical and Supercritical Fluid Extraction of ...

Near- and ,supercritical, toluene ,extraction, (SCTE) of sewage ,sludge, was studied at temperatures of 300-450 °C and pressures of 8.5-20 MPa. The studies were performed with different solvent/,sludge, ratios (3, 1.5, and 1) for 1 h, and the optimum solvent/,sludge, ratio was found to be 1; it was also the value at which the highest total product yield was obtained.

Treatment Of Refining Sludge Patents and Patent ...
Treatment Of Refining Sludge Patents and Patent ...

Abstract: A method of treating a first batch of oil ,sludge, containing entrapped oil residue comprises the steps comprises the steps of bringing into contact the first batch of oil ,sludge, to a liquid composition of an emulsion with or without a carrier, wherein the emulsion comprises an alkylpolyglucoside surfactant in 2 to 40% by weight of total composition; a co-surfactant in 1 to 30% by weight of total composition …

Overview of Emerging Oily Waste Treatment Technologies
Overview of Emerging Oily Waste Treatment Technologies

oxidation of oily waste and extractive clean-up of oily sludge. Wet oxidation is basically a low temperature incineration process which can be operated either subcritically or supercritically with regard to the water. Furthermore, it can be operated either above ground in process vessels or …

Remediation of Oil Contaminated Soils: A Review
Remediation of Oil Contaminated Soils: A Review

solubilisation, solvent ,extraction,, ,supercritical, fluid ,extraction,, hot water ,extraction,, and various other leaching remediation ,techniques,. Onsite incineration has been mostly used as the cheapest process for remediating contaminated soil, but negative public opinion …

Supercritical Water Gasification of Municipal Sludge: A ...
Supercritical Water Gasification of Municipal Sludge: A ...

8/12/2011, · These hydrothermal decomposition methods use supercritical (≥374.2°Cand 22.1 MPa) or near-supercritical states as the destruction medium for sludge. Many of these techniques have been repeatedly demonstrated in laboratory experiments to thoroughly destroy wet wastes such as sewage and oily sludges with efficiencies exceeding 99% (Cao et al., 2011).

Successful treatment with supercritical water oxidation ...
Successful treatment with supercritical water oxidation ...

Supercritical, Water Oxidation (SCWO) operates in a totally enclosed system. It uses water at high temperatures and high pressure to chemically change wastes. ,Oily, substances become soluble and complex hydrocarbons are converted into water and carbon dioxide. Research and development on SCWO is described.

On‐line coupling of supercritical fluid extraction and ...
On‐line coupling of supercritical fluid extraction and ...

This review summarizes and discusses recent advances and applications of on‐line ,supercritical, fluid ,extraction, coupled to liquid chromatography, gas chromatography, and ,supercritical, fluid chromatographic ,techniques,. ,Supercritical, fluids, due to their exceptional physical properties, provide unique opportunities not only during the ,extraction, step but also in the separation process.

A review of the application of different treatment ...
A review of the application of different treatment ...

This study introduces harmless and resource-based ,oily sludge treatment, technologies. It summarizes the technologies from various aspects, such as the process principle, influencing factors, advantages, and disadvantages, and analyzes and summarizes the status quo of the development of the technologies.

A Review on Extraction and Identification of Crude Oil and ...
A Review on Extraction and Identification of Crude Oil and ...

These include ,supercritical, fluid ,extraction, (SFE), ,supercritical, fluid chromatography (SFC), and liquid chromatography (LC). This review covers recent developments and advances in all of the above-mentioned and related ,techniques, used to extract and identify crude oil and related products.

Petroleum sludge treatment and disposal: A review
Petroleum sludge treatment and disposal: A review

Since the problems of ,oily sludge, generation is on increase, and most of the ,treatment, methods are quite costly or not effective; ultrasonic ,treatment,, solvent ,extraction,, incineration, and S/S are costly, incineration is also linked with air pollution, whilst land farming and degradation are not effective and associated with leaching of heavy metals, large field of land and time eating up.

Supercritical Carbon Dioxide Extraction of Lignocellulosic ...
Supercritical Carbon Dioxide Extraction of Lignocellulosic ...

An alternative for the separation of oils is represented by the ,extraction, using ,supercritical, carbon dioxide (sCO 2) as a solvent. In the ,supercritical, region (i.e., above 73.8 bar and 31 °C), carbon dioxide behaves as a liquid solvent, exhibiting liquid-like densities and good solvent power towards apolar and moderately polar compounds.

Review on oily sludge treatment technology - IOPscience
Review on oily sludge treatment technology - IOPscience

1/3/2020, · This paper mainly introduces the source, characteristics, environmental impact, as well as traditional and newly developed ,oily sludge treatment, technologies. With the improvement of national environmental protection requirements, ,oily sludge, quality reduction, recyclable and harmless ,treatment, technology will become the most potential technologies in the future.

Successful treatment with supercritical water oxidation ...
Successful treatment with supercritical water oxidation ...

Supercritical, Water Oxidation (SCWO) operates in a totally enclosed system. It uses water at high temperatures and high pressure to chemically change wastes. ,Oily, substances become soluble and complex hydrocarbons are converted into water and carbon dioxide. Research and development on SCWO is described.

Treatment of oily sludge using solvent extraction ...
Treatment of oily sludge using solvent extraction ...

31/1/2019, · The aim of the present work is to treat this oily sludge by solvent extraction in order to separate this sludge to many components that are easy to deal with and recover the valuable crude oil. Different solvents types are used in this work: light naphtha, heavy naphtha, kerosene, gasoline, and methyle ethyle keton.

Remediation of Oil Contaminated Soils: A Review
Remediation of Oil Contaminated Soils: A Review

solubilisation, solvent ,extraction,, ,supercritical, fluid ,extraction,, hot water ,extraction,, and various other leaching remediation ,techniques,. Onsite incineration has been mostly used as the cheapest process for remediating contaminated soil, but negative public opinion …

Oil sludge washing with surfactants and co-solvents: oil ...
Oil sludge washing with surfactants and co-solvents: oil ...

Abstract. Different physicochemical and biological treatments have been used to treat oil sludges, and oil recovery techniques are preferred such as oil sludge washing (OSW) with surfactants and co-solvents. Toluene is commonly used as co-solvent, but it is non-benign to the environment.

Chat Online Inquiry Email

Business cooperation

+86 13525609655

Company address

Road West, North Branch, Jingkai Road, Puyang City