Exxon Chemical Patents, Inc.

Exxonmobil Chemical Patents Inc.

Exxonmobil Research and Engineering Company

Norbert Baron

Aspy Keki Mehta

Jo Ann Marie Canich

Bernard J Folie

Makoto Sugawara

Howard Curtis Welborn, Jr

Joseph Dominic Domine

Charles Stanley Speed

Hayashi Shigekauzu

William Joseph Zafian

Akihira Watanabe

Doulgas J McLain

David T Henry

Charles Stan Speed

Systems and methods for reducing an overpressure caused by an explosion of a vapor cloud are provided. In one or more embodiments, the system can include one or more sensors operable to detect the explosion of the vapor cloud. The system can also include one or more igniters operable to ignite the vapor cloud at locations throughout, after the explosion of the vapor cloud is detected, to provide a discrete combustion zone at each location. Each combustion zone can form a discrete pressure wave, thereby reducing the overpressure caused by the explosion of the vapor cloud.

Systems and methods for reducing an overpressure caused by a vapor cloud explosion

Long-chain branched polymers and their production

The invention relates to processes for producing polyolefins at pressures substantially below conventional high pressure conditions in two-phase conditions below the cloud point. The invention can involve a continuous system with optional recycle.

Process for polymerizing olefinic feeds under pressure

The invention provides a continuous process for catalytically polymerizing a monomer feed of ethylene and at least one comonomer which comprises introducing a catalyst including a bulky ancillary ligand transition metal compound and monomer feed in an upstream reaction zone for polymerization, introducing further catalyst in a downstream reaction zone for further polymerization, the peak temperature in the downstream reaction zone being at least 50.degree. C. higher than in the upstream zone and being above 150.degree. C. The process economically produces polymer of good properties which is melt processable.

Process for producing polymers with multimodal molecular weight

Growing community of inventors

Cologne, Germany

Norbert Baron