Application equipment, sulfur foam

On March 8, 1977 the Chevron Chemical Co. commercial field foaming equipment was demonstrated in Calgary to over 100 spectators representing local, provincial, and federal government, as well as local contractors and Canadian oil and gas companies (Figures 7, 8, and 9). This demonstration, jointly sponsored by Chevron and the Sulphur Development Institute of Canada (SUDIC), illustrated the practical application of sulfur foam in the field. 

Sulfur Foam and Commercial-Scale Field Application Equipment... 

Large-scale uses for this type of foamed-in-place insulation and application equipment are anticipated as the Canadian Arctic is developed. Successful results from these field tests and the prospects of commercial uses of the sulfur foam prompted Chevron Chemical Co. to proceed with the design, engineering, construction, and demonstration of a commercial-scale sulfur foam field application unit. 

The use of aqueous foams to control fume or vapour release from reactive chemicals is discussed. An acid-resistant foam NF2 controlled fume emission from 35% and 65% oleum, and from titanium tetrachloride, but was not effective for sulfur trioxide and chlorosulfuric acid. An alcohol-resistant foam NF1 suppressed ammonia vapour emission by 80%, and Universal fire foam reduced evaporation of ethylene oxide, vinyl chloride and methanethiol, and reduced vapour emission of 1,3-butadiene by 60%. Safety aspects of foam blanketing are discussed [1]. Equipment and application techniques are covered in some detail [2],... 

---