Application of Turbiscan LAB to study the influence of lignite on the static stability of PCLWS

Ren, Yangguang; Zheng, Jiaxing; Xu, Zhiqiang; Zhang, Yuxing; Zheng, J. P.

doi:10.1016/j.fuel.2017.08.026

Cited by 59 publications

(21 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…TSI values can directly reflect the stability status of crude oil; the smaller values, the more stable the crude oil. 33 , 38 The diagram of the experimental setup is presented in Figure 9 .…”

Section: Methodsmentioning

confidence: 99%

Method for Judging the Stability of Asphaltenes in Crude Oil

et al. 2020

View full text Add to dashboard Cite

The colloidal instability index (CII) has been widely used for testing the stability of asphaltenes as a classical method. In this study, five oil samples were tested by the CII method; the results obtained greatly differ from the real field results. In our investigation, we combined the Turbiscan LAB stability analyzer and saturate, aromatic, resin, and asphaltene (SARA) analysis to further investigate the asphaltene stability by heptane titration. The results revealed that there exists a threshold volume ratio before the asphaltenes destabilize. The stability of crude oil is related to the saturation solubility of asphaltenes. By testing the CII value of the crude oil in its current state and the CII value of the dissolved asphaltenes in its saturated state, we were able to propose a new way to judge the oil stability.

show abstract

Section: Methodsmentioning

confidence: 99%

Method for Judging the Stability of Asphaltenes in Crude Oil

et al. 2020

View full text Add to dashboard Cite

show abstract

“…32 The increase of the particle size leads to the increase of TSI. 33 Within 24 h, the TSI curves in the bottom, middle, and top parts almost overlap (Figure 6B), showing similar variations across all parts of the nanodispersion. The TSI increased rapidly within 2 h and then slowed down, indicating that particle size increased rapidly within 2 h and then tended to be stable.…”

Section: Resultsmentioning

confidence: 76%

“…The Turbiscan stability index (TSI) was calculated by the Turbiscan software and used to evaluate stability of the sample . The increase of the particle size leads to the increase of TSI . Within 24 h, the TSI curves in the bottom, middle, and top parts almost overlap (Figure B), showing similar variations across all parts of the nanodispersion.…”

Section: Resultsmentioning

confidence: 99%

Simple, Effective, and Energy-Efficient Strategy to Construct a Stable Pesticide Nanodispersion

Zhang

Gao

et al. 2021

ACS Agric. Sci. Technol.

View full text Add to dashboard Cite

Nanopesticides have great impetus for enhancing the efficacy and safety of pesticides. Developing a simple and effective preparation method and controlling nanoparticle size growth during nanopesticides storage are still great challenges. In this paper, a new strategy was adopted to successfully construct nanodispersions. That is, pesticide was stored as soluble concentrate (SL), and the nanodispersion was formed by diluting with water when use. As an example, bifenazate-spirodiclofen (BS) complex SL was prepared and stable at 0 ± 2 and 54 °C ± 2 °C during 14-day storage. The mean particle size of the BS nanodispersion was less than 220 nm after standing for 24 h. The wettability and acaricidal activity of the BS nanodispersion were better than that of commercial SC. The universality of the strategy was also validated by bifenazate, spirodiclofen, abamectin, and difenoconazole. The strategy to construct a stable pesticide nanodispersion is simple, effective, and energy-efficient, which will promote the development of nanopesticides.

show abstract

“…The static stability of CWS prepared in the presence and absence of dispersant were compared by a stability analyser. The coefficient TSI as a quantitative parameter was used to estimate the stability of CWS [ 26 , 28 ]. As can be seen from figure 10 , the TSI of CWS prepared without dispersant is 0.66 and 0.61 for Yili coal and Yulin coal, respectively.…”

Section: Resultsmentioning

confidence: 99%

Synthesis of a novel amphoteric copolymer and its application as a dispersant for coal water slurry preparation

Zhang

Yang

et al. 2021

R. Soc. open sci.

View full text Add to dashboard Cite

In this work, a novel amphoteric copolymer named Poly(sodium p-styrenesulfonate– co -acrylic acid- co -diallyldimethylammonium chloride) (P(SS- co -AA- co -DMDAAC)) was synthesized via free radical polymerization. Afterwards, P(SS- co -AA- co -DMDAAC) was explored for use as a dispersant in coal water slurry (CWS) preparation. The structure of P(SS- co -AA- co -DMDAAC) was verified by Fourier transform infrared spectroscopy and nuclear magnetic resonance. The synthetic conditions were optimized as the feed ratio of AA to SS was 1 : 1 (for Yulin coal) or 1.5 : 1 (for Yili coal), and DMDAAC dosage was 4.0 wt% (for Yulin coal) and 6.0 wt% (for Yili coal) toward total monomers. The performances of P(SS- co -AA- co -DMDAAC) as a dispersant for CWS were evaluated by various technologies, such as apparent viscosity, zeta potential, static stability and contact angle measurements. The results revealed that the optimized dosage of P(SS- co -AA- co -DMDAAC) in CWS preparation was 0.3 and 0.4 wt% for Yulin coal and Yili coal respectively. In this optimum condition, CWS prepared using P(SS- co -AA- co -DMDAAC) as dispersant showed a typical shear thinning behaviour and excellent stability, which are desired in industries. The rheological models also confirmed the pseudo-plastic characteristics of CWS. Finally, compared with the widely used anionic dispersant naphthalene sulphonate formaldehyde condensate (NSF) and poly(sodium p-styrenesulfonate) (PSS), P(SS- co -AA- co -DMDAAC) developed in this work exhibited better slurry making performance. The introduction of cationic functional groups promoted the adsorption of the dispersant, which further enhanced the electrostatic repulsion and steric hindrance among coal particles. Accordingly, the viscosity of CWS decreased and static stability enhanced.

show abstract

Application of Turbiscan LAB to study the influence of lignite on the static stability of PCLWS

Cited by 59 publications

References 50 publications

Method for Judging the Stability of Asphaltenes in Crude Oil

Method for Judging the Stability of Asphaltenes in Crude Oil

Simple, Effective, and Energy-Efficient Strategy to Construct a Stable Pesticide Nanodispersion

Synthesis of a novel amphoteric copolymer and its application as a dispersant for coal water slurry preparation

Contact Info

Product

Resources

About