Hydrate formation in water-laden microcapsules for temperature-sensitive release of encapsulants

Abstract

Water-laden microcapsules are designed to release encapsulants under the condition responsible for hydrate formation.

Effective colloidal emulsion droplet regulation in flow-focusing glass capillary microfluidic device via collection tube variation

“…To date, microuidic devices prepared by the sequential assembly of glass capillary tubes have been widely adopted due to the innate advantages of easy to process and integration, high throughput yield with ne droplet monodispersity, well resistance to organic solvents, etc. [43][44][45][46][47][48][49][50] Two basic geometrical forms, known as the co-ow and ow-focusing congurations, are widely utilized for the generation of colloidal emulsion droplets, in which the introduction of a glass capillary collection tube with a smaller orice dimension in the ow-focusing conguration can effectively reduce the dimension of the generated colloidal emulsion droplets compared to the co-ow counterpart, which is more favorable for practical applications, especially for the preparation of complex higher-order emulsions. [51][52][53][54][55] However, till now, there is still a lack of standards and specications for the design of the glass capillary collection tube in terms of both morphology and dimension, previous experiments prevalently adopted a conical morphology, and the corresponding dimensions were largely set with reference to personal experience.…”

Hydrate Growth Inhibition by Poly(vinyl caprolactam) Released from Microcarriers under Turbulent Mixing Conditions

“…Once KHI is injected into the flowlines, it will mix with the free water phase until it reaches the offshore processing facilities. In our previous work, , microcarriers were designed to encapsulate a PVCap solution and selectively release the solution at temperatures where hydrate formation occurs under constant shear flow. We proved that these microcarriers were able to release the encapsulant on demand, and the released PVCap effectively delayed hydrate formation under shear flow.…”