A process for producing a polyol block copolymer in a multiple reactor system including a first and second reactor in which a first reaction takes place in the first reactor and a second reaction takes place in the second reactor. The first reaction is the reaction of a carbonate catalyst with CO.sub.2 and epoxide, in the presence of starter and/or solvent to produce polycarbonate polyol copolymer and the second reaction is the reaction of DMC catalyst with the polycarbonate polyol compound of the first reaction and epoxide to produce polyol block copolymer. The product of the first reaction is fed into the second as crude reaction mixture, the epoxide and the polycarbonate polyol compound of the first reaction are fed in a continuous or semi-batch manner, and/or the product of the first reaction has neutral or alkaline pH on addition to the second. The invention further relates to the copolymers and products incorporating such copolymers.

A system for producing a fibroin protein product includes a first batch reactor, an inline mixer, a pressurization tapering section, a second batch reactor, and a filtration unit. A method for producing a fibroin protein product includes dissolving fibroin protein in aqueous-based fluid in a first batch reactor, and producing the pretreatment solution and pumping it to an inline mixer. The method includes feeding a salt feed upstream of the inline mixer to mix with the pretreatment solution. The method includes exerting a shear force by the inline mixer to the mixture of the salt feed and the pretreatment solution, producing an intermediate solution, and flowing the intermediate solution to a pressurization tapering section to promote a transformation of the intermediate solution into a fibroin protein product. The method includes filtering the fibroin protein product using a filtration unit to remove unreacted reagents, producing a filtered fibroin protein product.

The invention relates to a system for producing polyolefin. The system comprises a gas phase reactor (1) for polymerizing an olefin to obtain polymerization product. The gas phase reactor (1) comprises a gas distribution plate (11) arranged inside the gas phase reactor (1); a first outlet (12) for continuously withdrawing polymerization product from the gas phase reactor (1) as a first product stream, the first outlet (12) being arranged above the gas distribution plate (11); and a second outlet (13) for continuously withdrawing polymerization product from the gas phase reactor (1) as a second product stream, the second outlet (13) being arranged above the gas distribution plate (11). The system further comprises a first outlet tank (2) in fluid communication with the first outlet (12) via a first passage (22), wherein the first passage (22) comprises a first valve means (221) for controlling the flow of the first product stream in the first passage (22) and wherein the first outlet tank (2) is arranged to receive the first product stream and to concentrate the first product stream; a product receiver tank (3) in fluid communication with the second outlet (13) via a second passage (31), wherein the second passage (31) comprises a second valve means (311) for controlling the flow of the second product stream in the second passage (31), and wherein the product receiver tank (3) is arranged to receive the second product stream; and a control means in communication with the first valve means (221) and the second valve means (311) and arranged to control the operation of the first valve means (221) and the second valve means (311) so that flow in only one of the first passage (22) and the second passage (31) is allowed at a time. The invention relates also to a process for recovering polymerization product from a gas phase reactor (1). The gas phase reactor (1) is suitable for polymerizing an olefin to obtain polymerization product and comprises a gas distribution plate (11) arranged inside the gas phase reactor (1); a first outlet (12) for continuously withdrawing polymerization product from the gas phase reactor (1), the first outlet (12) being arranged above the gas distribution plate (11); and a second outlet (13) for continuously withdrawing polymerization product from the gas phase reactor (1), the second outlet (13) being arranged above the gas distribution p

A process for producing a polyol block copolymer in a multiple reactor system including a first and second reactor in which a first reaction takes place in the first reactor and a second reaction takes place in the second reactor. The first reaction is the reaction of a carbonate catalyst with CO.sub.2 and epoxide, in the presence of starter and/or solvent to produce polycarbonate polyol copolymer and the second reaction is the reaction of DMC catalyst with the polycarbonate polyol compound of the first reaction and epoxide to produce polyol block copolymer. The product of the first reaction is fed into the second as crude reaction mixture, the epoxide and the polycarbonate polyol compound of the first reaction are fed in a continuous or semi-batch manner, and/or the product of the first reaction has neutral or alkaline pH on addition to the second. The invention further relates to the copolymers and products incorporating such copolymers.

The present invention relates to a method for producing a thermally inhibited starch, the method comprising providing a volume of dehydrated starch having a pH value between 7.0 and 11 and having a moisture content of <2 wt. %, based on the weight of the starch, in a stirred batch reactor, said reactor being comprised with a gas inlet, and applying a flow of gas through the volume of dehydrated starch in the reactor while heating and stirring the starch to a temperature of at least 140 C. for a period of time sufficient to thermally inhibit the starch. In addition, the invention relates to a device for thermally inhibiting starch and use of a flow of gas in a stirred batch reactor during thermal inhibition of starch.

A process involving the steps of: (a) supplying reactants to a reactor vessel (A); (b) optionally, supplying a solvent to the reactor vessel; (c) subjecting the contents of the reactor vessel to reactive conditions to obtain a product mixture (1) including a reaction product; (d) removing the product mixture (1) from the reactor vessel and supplying it to a decanter system (B); (e) in the decanter system, separating the reaction product from the product mixture by decantation and removal of a stream (2) including the reaction product; (f) removal of a stream (3) including the solvent from the decanter system; wherein at least one of the reactants supplied in step (a) is supplied in a form dissolved in a solvent, or a solvent is supplied in step (b).